Harvest Moon, but Animal Crossing runs a close second.

Tough. There are lots of worlds that would be pretty awesome. I'd like to say Metroid, since being Samus would be epic, but then again it'd be very lonely and you'd be running around fighting space pirates all day.

I think living in the Mario world wouldn't be so bad.

I would have to say the either the Guitar Hero 3 world, the FFXII world or the Never Winter Nights world.

The GHIII world would kick ass because you get to rock out, get rich and have a guitar battle with the Devil. How kick ass would that be.

FFXII world would be quite cool because you have a time in the world that has both flying cities, flying ships and all semi-mid evil at the same time. You can go around and kill a bunch of small tinly little creaters and get exponentially stronger with it. Finally there is not a single ugly woman in sight and ever woman wants your body because you are big strong guy who kills monsters.

Last but not least you can live  in the NWN world. You could be any of the many many races and get to interact everyday with many other races. There are also many many different jobs you can get skilled in or get skilled in any weapon or magic you could ever possibly think of. You could be a thief and pick locks or be a pickpocket all day. If you want you can spend weeks on end just treasure hunting or you go save a town, or even the world. You get stronger and stronger as time goes on, you can carry hundreds of pounds of equipment everywhere you go. If you get strong enough you can go wipe out a town and have no negative consequences. You can do anything you want anytime and learn anytihng you want. Now that is what I call a damned cool world

Animal Crossing? Really?
You wanna pick weeds and run errands for a raccoon all day?

In final fantasy VIII, without a doubt!

FFX I would love to be Auron!!!!!!!!

My Second Favorite would be Snake from Mgs!!!!!!!!!!!!

Pokemon World by far.

okay OTHER then some kind of playboy game or such I'd pick to be in Madden. Yes thats right I'd love to play football all the time.

Pokemon. Stationary underaged girls ftw. :P