captain falcon's d-air will always be the best meteor smash imo :]
on the topic of controllers, i've been using the classic controller pro (the one for the original wii) with tap jump disabled and the l/r and zl/zr button functions swapped and i've been doing alright for myself. the latter modification is due to my deeply-ingrained muscle memory from exclusively using a gamecube controller when i first started playing brawl.
anyways, i've been playing the wii u version for a little while, and my main is rosalina & luma (if you haven't already guessed from my smogon and twitter avatars). while it's rather difficult to use her effectively thanks to her luma and her incredibly light weight, she has definitely lived up to and surpassed the hype i had for playing as her. granted, i'm still a smash noob (last time i checked, i only have a 25% win rate on the for glory mode), but i'm still having a ton of fun just playing the game and learning how to do some of rosalina & luma's more advanced techniques; while my win rate suggests otherwise, i also don't feel that i have been struggling too much in the process of learning how to play her effectively. my only complaint is that rosalina is extremely light and thus vulnerable to moderately strong characters if i don't play carefully. i also like messing around with zero suit samus, robin, king dedede, and shulk due to the incredibly different playstyles each one of them offers.
with that minor talk done, what are your favorite alt costumes for the characters you play as? mine are as follows:
rosalina & luma: white dress + red star decals
zero suit samus: black zero suit
robin: blue coat & hair (male) / pink coat & hair (female)
king dedede: light blue jacket
shulk: pink clothes (the one based on melia's color scheme)