[Sangetsu]

What kind of climate do you prefer? It can get very cold in the northern part of the country while weather in the southern part can be mild.

Every part of Japan has it's own charm, and I find it hard to judge one place as being better than another. I haven't yet been to a part of Japan which I disliked.

As part of the JET program, your placement is pretty much a toss of the dice. They'll make an effort to place you in one of the three places you request, but not much of an effort. If there are not positions available in those places, then you could end up anywhere. This isn't a bad thing, it's a good life experience.