Leviathan/Darth Revan would lose but it'd be a good fight imo.
Post KoTOR Revan would take the win with difficulty
Reborn Revan would take the win.
Gnost and Aryn aren't mooks, they're certainly very powerful Jedi.
Plus Revan has few feats dueling wise as of Kotor. He only dueled most of Taris dueling ring people until he beat Ice(that is a real character) defeating bendak is DS so it effectively makes that N-Canon. he defeated Bandon, but he had his allies, same goes for Calo Nord. he did manage to defeat two terantakteks on Korriban and Malak. i think Gnost and Aryn are bamf and could potentially take the victory. That's my two cents at least. and it all depends on which revan it is.
Registered: Mar 2014
Location: The Misty Mountains
Malak may be > Aryn and >Gnost but there are two of them. One of them an extremely experienced warrior who has been fighting sith for decades who knows all seven forms and is a master of atleast 2. the other is a powerful force wielder who was capable of stalemating Darth Malgus. Revan has his work cut out for him.
Registered: Mar 2014
Location: The Misty Mountains
Aryn is the most powerful force wielder of the two. She stole a lightsaber from Darth Malgus's grip and threw a six car trolley. Shes smashed alderanian statues casually. Revan may be more powerful but he isn't rag dolling.
Aryn alone should be a challenge for Revan, though he is a head above her in the long run. I'm not sure how Gnost's contribution will alter the fight, however, so for now I'm not entirely positive.
Registered: Mar 2014
Location: The Proud Nation of Kekistan
I'm siding Revan.
__________________
Shadilay my brothers and sisters. With any luck we will throw off the shackles of normie oppression. We have nothing to lose but our chains! Praise Kek!
THE MOTTO IS "IN KEK WE TRUST"