Goddammit! I thought there would be few people choosing Pokemon world! Well, I can't say I blame you.

My reasons are that:
First, I'd be smarter than everyone else, since everyone told schools to fuck off.
Second, I know where all the Legendaries live and how to beat them, so I'd be unstoppable really soon! >

Third, come on! It's freakin' POKEMON! If my food was too cold, Ninetales heats it up; if my grass is too tall, Scyther cuts it, if I want to take care of my garden, Dugtrio works the soil for my plants; I want the remote for the TV, but it's too far, then Alakazam picks it up with telekinesis for me (of course he'd be slacking off on the couch as well!); and if I was still in high-school, I'd have Machamp beat up some kids for me.

Ah, the days I fantasized with living in a Pokemon world... XD
Ok, besides that obvious choice, I'd take Mushroom Kingdom (where there's so many magic stuff that gives you powers!), Final Fantasy Crystal Chronicles (I'd be on a caravan and fight every year to get magic Dew Drops to keep my village going for another year! Fighting monsters, seeing the beautiful world, conquering gigantic beats, meeting new people, getting a lot of powerful magic - I'd so love to have enough fire power to conjure a small sun on my enemies...

), and Gensokyo (because it's just awesome to share the world with Goddesses, Witches, Youkais, Onis, Vampires, Fairies, etc; plus being able to travel to Heaven, Limbo, Hell, Forests, mountains, flying ships...; I'd just like to have a decent ability so that I could last long enough to appreciate the world before dying a horrible death ^_^' ).