Are cats or dogs funnier?
I'll let you be the judge, but first let me explain why I bring this up now.
Personally, I think that cats are funnier. They tend to be more stubborn, they don't really care what you're up to, and they basically just do whatever they want. In other words, they aren't doing something to make you laugh so that they can get some sort of sick satisfaction out of it.
Dogs, on the other hand, are people pleasers, which isn't inherently bad. They're there when you need them, and they are very lovable. That just doesn't translate into being laugh out loud hilarious though...
Okay, now you be the judge.