For me, it depends largely on the area. For badges, though, I use the Mush Badge (A, AA) almost exclusively, unless I want a specific effect (Spiny-Killer, HP-up Hammer, etc.) For pants, I generally do ones with First Strike, Mario Follow, Mario Ahead, or DEF-Up effects (e.g. School Slacks, #1 Trousers, Scandal Jeans, Parasol Pants). I almost exclusively use the Bonus Ring and Great Force as well.
I'll never understand anyone who regularly uses the Tank/Sarge Badges.
