Here's a silly test if you are bored, lol.
http://www.helloquizzy.com/tests/the-are-you-a-cat-or-dog-test
Not only which do you prefer more as a household pet, but do you feel you have the characteristic of one over the other?
I have a cat but also love dogs ( we have had both at home), I think I share the outgoing, pleasing aspects of a dog, carefree and wanting to enjoy life, but I also have the do my own thing, want to be alone at times like a cat can be.