I'm personally don't like having Pokémon in custom PokéBall, as it makes things look sort of artificial in my eyes, if you know what I mean! I could definitely understand why others would like them, though, haha.
Ah, that sounds cool. I already have Powersaves, but don't usually do anything with it aside from backing up save files (I'm not really sure if it allows us to do anything else, either). Nope, I haven't done it yet, but am planning to!
Sat, which version are you getting? =)