Tenebrous it's a bit big for Revan.. I'm said many time han Revan where able to take down sidious even if sidious is a way more powerfull.. But sidious super arogance help him a lot. Vitiate where more powerfull in force power thank to aumentation, than sidious, but in an other hand sidious is more polyvalent... (I mean he is good at light saber) but in pther other hand sidious trhow his light saber away in RotJ to focus only on force combat...
I don't think so for Tenebrous...
Revan is really able to control himself even blood lusted... That one capacity which make him a good duelist... Because it's hard to disturb him (but not impossible of course...)