Master Crimzon
Baby Killer
Luke doesn't stand a chance. It won't exactly be a curbstomp, though.
To elaborate, both Bane and Pre-Suit Vader are incredibly skilled lightsaber prodigies (I'd personally put Caedus and Anakin roughly on par with each other in a lightsaber match), and should both, possibly, be able to not get exactly get WTFpwned in a lightsaber duel with Luke Skywalker while fighting individually. Together, they beat Luke rather handily in lightsaber combat.
The force fight? While non exactly come close, Bane and Revan are both known to be immensely talented practioners of the dark side, implying that they could, possibly, be able to overpower Luke's defenses in a force fight. Or maybe not. I'd give Luke a slight chance to defeat them in a force fight.
All-out? I'd reckon the Team certainly wins, unless Luke uses Emerald Lightning to take out Bane before the fight actually begins. If so, he would probably defeat Revan and Anakin.