that depends, Sadow cuts Kyp to pieces first then duels Revan and Ulic, or Sadow releases a force storm to severly injure the trio and then fight them etc..
That isnt a reasons its a prediction of how the fight would go, and it is not neccesarily right.
Still Sadow has a nice amulet that can blast people to smithereens, and he has a few more amulets on him and knows a lot of magic, can swing that huge as sword like its a lightsaber....
Revan's the pipsqueak of this fight, Sadow takes him out with a sneeze.
Kyp is lesser than Ulic, and Ulic's going to get tooled in melee by Sadow. Yes, Ulic is very good, but Sadow's swinging with far more power than Ulic can put out.
__________________ >>Antediluvian<< Stop the flood!
That's why he has demonstrated the ability to conjure force storms, inspire fear and awe from the Jedi Masters and Lords of the Sith of the time, was credited as the strongest Jedi of the time, was able to control the Star Forge (a device that killed several Sith lords who attempted), and defeat Darth Malak a Sith Lord who was empowered by the said Star Forge.
I am not saying that the trio can take out Sadow, but I am saying that Revan is the "strongest link."