I would be (of course) an Elf, one of the Noldorin Exiles, so I could go berserker on Morgoth's arse. And because I just love saying stuff in Elvish, 'cause I'm a loser like that.

(I swear, one day I will own a large peice of land with a deep, dark forest on it, and I will call it Taur-nu-Fuin, because that is the greatest name for a forest EVER.) And, like Gil-galad, I would pay homage to Monty Python. My esquire would follow me everywhere banging two empty halves of a coconut together.