Conclusion
Dogs are evidently better than cats. Although they both have their pros and cons but it is safe to say that a dog’s pros outweigh it cons. So if you don’t yet have a preference and you are going to ask which you should get as a pet my answer is definitely for you to get a dog.
References:
[1] http://www.alphapaw.com/
[2] http://www.fearfuldogs.com/
[3] http://www.msdvetmanual.com/
[4] http://www.whiteswanfoundation.org/
[5] http://www.dogsized.com/
[6] http://www.dogtime.com/