Pit

Pit is the main Character from Nintendo's Kid Icarus franchise.

Fights so Far
http://dbxfanon.wikia.com/wiki/Pit_vs_Sora

Possible Opponents
Shulk (XenoBlade Chronocles)

Link (Legend of Zelda)

Kratos (God of War)

Dante (Devil May Cry)

Bayonetta (Bayonetta)