I definitely prefer cats. They're less needy, less loud (usually), less obnoxious, less stinky, and generally easier to take care of. They cuddle, but they don't need constant attention. Dogs are stupid, slobbery, stinky, loud messes that you have to stop and give a personal escort to every time it needs to pee or poop. A dog is like a two year old that never grows up, whereas a cat is like an aloof teenager that only comes down to eat and participate in socialization purely at its own discretion.
The only problem is I'm at a bit of an impasse with my boyfriend. He doesn't live with me, but he's allergic to cats so if I get one him visiting me will become a problem (and if we do end up living together, that's also a problem). So I've decided I can tolerate a dog, but only a big one. And when I say big, I mean an Irish Wolfhound. I feel like the smaller a dog is the more stupid it is, so I want a giant dog to avoid that. And I specifically want an Irish Wolfhound because from what I read, they're a generally quiet and loyal breed that doesn't require as strict of training as a Husky or a Great Pyrenees, but still fairly large, intelligent, and friendly.