The wolf guy from "Wolf Guy - Wolfencrest" or whatever the crap its called. I mean come on, super uber strength, wolverines regenerative abilities times 5, and the fact that I am a big scary badass werewolf kinda makes it a want to have thing. Though then again I'll have to have the moon to turn into super uber werewolf form.
Otherwise I think I would choose Kenichi from "Histories Strongest Disciple Kenichi" or as its known in anime "Kenichi, the Strongest Disciple", not because Kenichi is badass (even though he is now) but because so far he has only lost once. And hes hardly been studying martial arts for maybe a year.
Completely unrelated, the wolf guy thing might be just a manga but i dont know, I kinda read more than I watch (like how I probably have no idea what happens in the anime of full metal alchemist but I have read all chapters of the manga). Food for thought.