• I did a quick search and found several resources that attempt to address the question of the strongest dog as the original post wanted to know.  Not about bite but about physical strength.  So here is what I found on http://afriqnet.hubpages.com/hub/top-10-strongest-dogs

    Top 10 Strongest Dogs

    Top 10 Strongest Dog Breeds : Overview

    Dogs come in diverse sizes, from the top 10 dogs that are the strongest to the smallest miniature breeds. It is virtually impossible to imagine that a Chihuahua and the Great Dane belongs to one species. While dog ownership is driven by need for companionship from man’s best friend, there are people who admire agility, vitality and strength exhibited by some breeds of dogs. The huge dogs instill fear from onlookers as well as neighbors, while some of these gigantic breed of dogs are obviously the strongest dogs, they may be docile and not characterized by aggressive behavior. The combination of strength and agility would make a dog a perfect guard dog but when dogs are just for companionship aggression may be undesirable. In this article, there are top 10 strongest dogs that have different temperament and can either be adopted as guard dogs as well as pets depending with their aggression.

    Top 10 Strongest Dogs
    Top 10 Strongest Dogs

    Top 10 Strongest Dogs No 1 : Mastiff

    Is a very large and powerful dog breed that may requires you to have significant amount of space in the house if you will keep one. Mastiff character can be described as gentle and loyal. The ideal place to have a Mastiff is when living in the country or in the suburban areas. The breed is not too demanding when it comes to care. The ideal care for a mastiff could be light exercises as provided by regular walks and also does not require more effort for grooming. Generally the mastiff pet would fall in the category of dogs that have low exercise demands. The gigantic size and power makes it score highly in the list of the top 10 strongest dogs.

    Top 10 Strongest Dogs Great Dane
    Top 10 Strongest Dogs Great Dane
    Source: Ppujari

    No 2 Top 10 Strongest Dogs: Great Dane

    This dog breed holds the record of the world tallest dog. The Great Dane is a huge and gigantic breed that has previously been used as a working dog. With a height of above a meter the Great Dane is obviously one of the top 10 strongest dog breeds. The size of the Great Dane may be deceitful of its character; the Great Dane is one of the most gentle dog breeds that have high tolerance towards other dogs and animals. The Great Dane is often Described as the gentle giant. Great Dane puppy may be mistaken for a ordinary adult breed. The breed has short hair coat and therefore does not offer serious grooming problem, other than the enormous effort required to bath this giant. Obviously this is not the kind of a task you want to do on daily basis.

    Top 10 Strongest Dog Breeds St Bernard
    Top 10 Strongest Dog Breeds St Bernard
    Source: dli.ro

    No 3 Top Strongest Dog Breeds : St Benard

    A dog breed that is known for its fast growing rate and increase in weight, St Bernard is often predisposed to a number of genetic conditions when not offered proper care. One of the most known health condition about St Bernard is the breed susceptibility to dog seizures. This however does not rule out St Bernard from the largest and top 10 strongest breeds of dogs. The average weight and height of 100 kg and 80 cm respectively are indicative of the gigantism of this dog breed. The St Bernard like the previous two top strongest breeds is not aggressive and offers limitless companions and loyalty as a pet. You will definitely appreciate owing one and walking him daily. The breed requires regular exercises for it to have a healthy life.

    Rottweiler Top 10 Strongest Dogs
    Rottweiler Top 10 Strongest Dogs

    No 4 Top 10 Strongest Dogs :Rottweiler

    This is a dog breed that commands aura of admiration when guard dogs are mentioned. The breed was initially developed for herding and guarding and this there explains the fearlessness exhibited by this dog breed. The dog can turn to be a ferocious creature it is not well socialized and trained. The breed is very protective of its owner and may even not welcome strangers and show aggression towards other family members. They are top in the list of the top 10 dog breeds that are strongest since they have strength that matches that of the largest breeds. In the size classification Rottweiler may either be classified as a large or a medium sized dog breed.

    Irish Wolfhound Top 10 strongest Dog  breeds
    Irish Wolfhound Top 10 strongest Dog breeds

    No 5 Top 10 Strongest Dogs : Irish Wolfhound

    The most distinct character of this breed is its ardent sight that is combined with the power that lies beneath this wooly coat. You may pass this dog breed as any other large breed, but its swiftness was previously useful for wolf hunting with dogs. This is why the dog breed was named as a wolf hound. The close facial semblance with wolves is not the reason of that name as many people would think. This dog breed is huge as portrayed by its weight that can be up to 120 pounds. The breed also shares close body semblance with the greyhound but has more muscles and strength. This makes it one of the most powerful dog breeds that fits as the top 10 strongest dog breeds. They are generally devoted and loyal to the owner but may show territorial protective tendencies especially in the presence of strangers. This is a common character of dogs that were initially bred for hunting purpose.

    Boerboel Top 10 Strongest Dog Breeds
    Boerboel Top 10 Strongest Dog Breeds

    No 6 Top 10 strongest Dog Breeds: Boerboel

    Boerboel is a breed that is associated with South Africa and was bred for guarding purposes. They are aggressive and highly territorial dogs that possess ability to work like tracking and holding wounded game. They have great strength and agility that is well blended with vigor and courage. They protect the owners with a lot of energy and vigorousness. They are very intelligent and cannot be allowed to roam around without keen attention. They can attack and chase strangers without warning.

    Great Pyrenees Top Strongest Dogs
    Great Pyrenees Top Strongest Dogs

    No 7 Top 10 Strongest Dogs : Great Pyrenees

    Great Pyrenees is a large dog breed that is commonly associated with guarding sheep in North America. The history of these breed dates years back to hundreds of generation. The breed is relatively huge with about 81 cm in height and weighs close to 100 pounds. The wooly skin has a double coat and beneath a muscular body. This dog has a unique characteristic of double dew claws that is not seen in another breed.

    Top 10 Strongest Dogs
    Top 10 Strongest Dogs
    Source: inetgiant

    8 Top 10 Strongest Dogs: American Pit Bull Terrier

    American Pit Bull terrier is a dog that has a strong chase reflex and can be very friendly. They are categorized as medium sized dogs. They are sturdy and solid making them very powerful. They generally have a longer life span of more than a decade compared to other large dog breeds. They get along with strangers and do well if they are trained and socialized during their early development. Some people regard them as one of the dangerous dog breeds since their strong urge of chasing and seizing prey can turn to be disastrous causing injury to people, other dogs and cats. This makes them undesirable pets. They are often misunderstood since proper training and socialization will correct or prevent the development of this aggressive behavior.

    Top 10 Strong Dog Breeds
    Top 10 Strong Dog Breeds

    No 9Top 10 Strongest Dogs : Greater Swiss Mountain Dog

    Greater Swiss Mountain Dog is a breed that is thought to have originated from the Swiss Alps and was previously used as working dog. The general temperament of this breed is docile and sociable. This dog fits as a good family pet that blends well with all the family members. The only shortcoming of this breed is a relatively short life span compared to other large and medium breeds of dogs.

    Newfoundland Top 10 Strongest Dogs
    Newfoundland Top 10 Strongest Dogs

    No 10 Top 10 Strongest Dogs: Newfoundland

    This is a large dog that has unique ability to swim with its webbed feet and water resistant coat. The dog may weigh as much as 150 pounds and was originally bred as a working dog. This enormous strength and loyalty make them admirable pets for large dog breed enthusiasts.