To me, ninja world in what Naruto lives is almost perfect. The only, but very importaint fact is that there are many murderers, many people die, many lose their parents and that's why many people are sad...
But, everything else is SO great. I'd really like to have chakra, to climb the trees the way they do, to have kunai-knives, to be able to perform many attacks, to go to Ninja Academy, to have headbands, oh, I almost forgot one of the best: to live in a world where technologie doesn't control people like it does me now (you'd probably think that I'm crazy, but look at that world they live in: they are always with their friends, outside, they are not controled by modern civilization, they live the way that we do, but without stuffs that are very importaint to us)... Anyway, if you'd choose a world you'd live in, what would it be? World with magic, with faries, with castels and witches, or would it be this world?

P.S. I'm very sorry cause I know this is a very long topic, but I hope you'll like it :)

i'd travel to the Air Gear world.. buy new ATs and enjoy the flight for several days