I'm a cat person.
Because Dog's are probably the ugliest animal I've ever seen, they're too loud and obnoxious... And they're, dare I say it, stupid. Also I hate stroking a dog, they feel... I don't know, icky, and in a way greasy.
Cat's however are cuter, nice too touch, usually a lot calmer, they're also a lot smarter it seems, or more aware of whats happening. If I'm ill and lying in bed sick, my cat always comes and lays next to me and licks me (I don't like being licked but it's a nice gesture), whereas if I lie down for a simple nap my cat won't bother me.
Also, cats are way more hug-able.
Of course, bare in mind this is just my opinion.