Gotei 13 ~ nice and cool organization plus some nice power and weapons make this a cool group...
Straw Hat Pirates ~ helping one another is nice to me....
Flame Haze/s ~ maintaining balance of the world, I wan't to become one also...
Servants (Fate)(if not individual
) ~ nice group of legendary heroes
GeneiRyodan ~ wth this is my favorite group/gang of all.... they're cool and mean...