I chose Decepticons, but I'd rather be a Predacon, out of the Beast Wars spinoff they made. If only cause I want to be a robot that can turn into a velociraptor.
Also, my favorite characters come from the Beast Wars show, cause I can't remember anything about the older series except it had Optimus Prime and Hotshot.
Anyways, my favorites;
Silverbot (I think that's the name, he was the badass Maximal who could turn into a bat/hawke thing, I can't remember most of it. I just remember him going into rages and beating the crap out of people.)
Dinobot (He was always one of my favorites, despite the fact that he sounded like he needed to spit every time he talked. I mean, he turned into a velociraptor and could shoot laser beams out of his FREAKING EYES!!! And he had this awesome fight scene with Megatron and came close to beating him by himself. Actually, the awesomeness of the fight scene might be in question, since I'm kind of nostalgic right now. Anyway, the point is, he was awesome.)
Bumblebee (Okay, so he's not in Beast Wars, he's in the movies, but he's cool. He has that R2-D2 cuteness going for him, except that he blasts people away with a car-sized cannon. (R2-D2 is still better. R2-D2 could pwn this noob.) So yeah, I think he deserves a place here.)
Edit: Also, what I meant to say is 'awesomeness' not 'cuteness'. Manly men don't say the word 'cute'. It's not even in our vocabulary. ... Because we're manly.