I personally found Pit quite usefully. On the other hand Ganondorf seems pretty unusable do to how long his attacks and mobility overall is. KI Uprising seems pretty solid 3DS game so I can see how he has his own series.
Been awhile since anything was discussed here... So here's a new topic.
What new series or new character from recent years would you like to see?
From lurking around gamefaqs SSB IV boards a lot of people seem to like Shulk from Xenoblade. Not that I played the game, but I wouldn't mind seeing him.