Who Would Win?

. Qui Gon Jinn
. Darth Talon
. Darth Bane
. Darth Wyrrlok (III)
. Kit Fisto

. Legends(except from Kanan)
. Prime
. Duel starts in Geonosian Arena

Wyyrlok's short-term battle against Darth Krayt places him above all the characters listed.

Wyyrlok is by far the mightiest

Wyyrlok

Wyrrlok has like no lightsaber feats though

Bane though I could be swayed to Wyyrlok's side.

I would side with Fisto myself here. He's clearly portrayed to be above the rest of the B team and just under Windu in terms of combative capability.

Both in the movie and the novel he manages to block multiple blows before succumbing to Palptine wheras his companions were outright blitzed:

"Their blind lives meant nothing now. None of them. Because ahead, on the vast cliff face of the Senate Office Building, one window spat lightning into the rain to echo the lightning of the storm outside-but this lightning was the color of clashing lightsabers. Green fans, sheets of purple-And crimson flame. He was too late. The green fire faded and winked out; now the lightning was only purple and red. - Revenge of the Sith.