Darth Malak vs Darth Traya/Kreia- Kreia would win, as she is more manipulative (plus how could Malak beat those three sabers, lol...plus he would be useless without the Star Forge to back him up...which is a shame as I like Malak)
The Exile vs Master Vandar Surely the little green dude would win. I can recall yoda being somewhat awesome in a fight...
Darth Nihilus vs Revan Ha, Revan without a doubt. Nihilus at the end of it all, was a relatively weak character.
Darth Sion vs Master Kavar and Master Zez-Kai Ell AS much as I like Sion, I would go with Kavar and Zez-Kai Ell.
Atris vs Bastila Shan Bastila, because Atris is a god awful schutta....
Master Uthar vs Master Zhar Probably would choose Master Uthar here...he has pretty good Force powers, whereas I cant recall ever seeing Zhar use his.
Yuthura-Ban vs Master Dorak Hmmmm, not sure. I will go with Yuthura simply because I like Twi'leks.
Darth Bandon vs Master Vrook Vrook, as he would kill Bandon through his special Force power: Sheer annoyance.
Visas Marr vs Brianna Kae (Force-User) Visas!
Jolee Bindo vs Mical the Disciple (Force-User) Why? Evil choice this. As much as I like Jolee, I gotta go with Mical...(soldier, plus a Force wielder?)
Juhani vs Mira (Force-User) Again, a hard one...but I go with Mira as she has that sneaky rocket launcher on her arm that she could use if all else fails, lol.
Zaalbar vs Hanharr Big Z. Sorry.
Mission/T3-M4 vs HK-47 HK would wipe the floor with almost anything, that and his sharp rhetorical retorts.
Canderous Ordo/Mandalore vs Bao-Dur (Force-User) Canderous! Hmmm...his regenerative implant, plus he is a strong fighter.
Atton Rand (Force User) and GO-TO vs Master Lonna Vash As much as I would dearly love to say Vash, the sneaky scoundrel would surely win...