If I had to go back, I would want to go to Fumizuki Academy from Baka and Test. Avatar battles would make test taking a lot more fun. I'd probably be in class B, where I'm sure the accommodations are nice.
I wanna go to the IS academy in Infinite Stratos. I wanna be the second male to control an IS. Maybe become friends with the main characters in it :) Maybe I think it's fun to be in this school because everyone is female (because there is only one male to ever control an IS). It is just fun to be in this school.