He still got a master who brutally tought him alchemy and survival. Not that I'd complain about a FMA world.
I'd have to go with Bleach or Air Gear at the moment.
With Bleach there'd be an option after death, though it'd only be interesting if I were a Shinigami. Since you can hold with reitsu you can pull of spells [magic]. Not too mention sword fighting. It'd also be funny having the world turned upside down with all those fake memories... Not that this might not actually be our world.
With Air Gear, I'd love to have something to make me fly without some gigantic machine around me. Moving at high speeds is incredible too after you lose your fear. Racing would be a hell of alot of fun. I mostly put this down since It's my fav. manga at the moment.