Hmmm. I'd have to say.. Buster loves laser pointers and automatic litter boxes a lot. He loves to sit and watch the litter box work. Hahaha.
He also will go INSANE.. Over food. He's a porkster. He will wail if you are anywhere near him with a can of tuna.
And he hates cups that are upright. Full or empty, he has made it his duty to knock over any cup that dare stand up straight. He has to knock them not only over, but off of whatever table or counter they are on. They usually also end up under the futon, with a huge trail of liquid behind them. This drives my boyfriend CRAZY.
He adores his catnip squirrel. He goes insane playing with it. Oh, and anything that I happen to be doing all seems to be some part of an elaborate game to him. He will sit there staring at me from across the room, waiting for me to make my next move. No matter what I do, he prepares to rush in to check it out or pounce for the kill. He often rushes right up to me as if I had been some kind of prey, and then immediately runs right off. He's funny.