I would say Goku as my favorite, but then that would be boring. Me? I like the Patara Fusion Vegito, he is more better then Gogeta, and I prefere him over SS4 Gogeta. Since SSj4 Gogeta dies out like 15 seconds and your opponent could just block every move. Unlimited time and powerful attacks, so yeah, I like him, but I spelt his name wrong in my user name :P
Yawn - what is there to say?