I've played another 500+ online battles, this time in the Wii U version, and so it's time to make another character usage list based on my experience and compare it to the 3DS one! The most notable difference has to be me declaring Little Mac to be over-used no longer! Yep I've no longer been encountering him literally every other game, but of course he's still one of the most used characters, just not significantly more than the rest. Now once again this list does not represent how good the characters are or aren't, only how much they are used, which is based on my findings alone. I'm sure your experiences will differ from mine, as would your usage list if you made one, but perhaps some or maybe even most of it we'd find the same! Then again there's actually quite a few differences between my Wii U list and the 3DS one. In parenthesis is the difference from the first, being either an up arrow meaning I've seen em used more, an down arrow meaning they've been used less, or equal sign meaning they've been used about the same.
OVER-USED
Super Smash Bros. for Wii U
OFTEN-USED
Mario (=)
Yoshi (↑)
Link (↑)
Kirby (=)
Ike (=)
Lucina (↑)
Zero Suit Samus (=)
Ness (↑)
Captain Falcon (↑)
Little Mac (↓)
Shulk (=)
REGULARLY-USED
Peach (=)
Donkey Kong (=)
Diddy Kong (↑)
Zelda (=)
Sheik (↑)
Ganondorf (=)
King Dedede (↑)
Samus (=)
Pikachu (=)
Charizard (=)
Jigglypuff (=)
Lucario (↑)
Greninja (=)
Villager (=)
Robin (↓)
Sonic (=)
Pac-Man (↑)
Mega Man (↓)
UNDER-USED
Dr. Mario (=)
Bowser (=)
Bowser Jr. (=)
Wario (↑)
Olimar (=)
Marth (↓)
Pit (=)
Dark Pit (=)
Paluteana (=)
Duck Hunt (↓)
RARELY-USED
Luigi (↓)
Rosalina & Luma (=)
Toon Link (=)
Metaknight (↓)
Fox (↓)
Falco (=)
Wii Fit Trainer (=)
R.O.B. (=)
Mr. Game & Watch (=)
NEVER-USED
Super Smash Bros for Nintendo 3DS
