I am pretty sure that Revan never killed four Jedi Masters at the same time.
No, but he was about to crush three and Bastila, or rather, this is commonly accepted. And you seem to allow commonly accepted theories as fact.
One of them, Mace Windu, being commonly thought to be better than Malak...
So? This is irrelevant. Despite the fact that Malak wasn't the most powerful being that Revan defeated, Darth Sidious didn't defeat Mace Windu. I don't see your point here.
Also, you can't say that these Jedi are no good against Sith because they weren't trained to fight them, or they "weren't fighting the real thing", because Plo Koon fought and killed Darth Rage.
Isn't Darth Rage a SuperShadow.com fabrication? If so, and I think it is considering I couldn't find a single thing that either isn't from SuperShadow itself or just regurgitated from it, then this is irrelevant.
Revan didn't personally empty the council chamber. It was his military forces and the Mandalorians that did that.
True. Sidious didn't personally destroy the Jedi Order either. It was his pre-programmed clone trooper masses that did it.
Revan killed what, three Sith Lords? Two of these Sith it turns out he had help from to other people to beat.
One was weaker than Malak, whom Revan killed on his own despite the fact that Malak was draining other Jedi for additional power. Ajunta Pall's spirit was destroyed without need of the two teammates.
Sidious has done better lightsaber against lightsaber things.
Sidious has killed three Jedi masters and matched one. Revan has killed a Mandalorian clan leader, an Echani duelist champion, an entire academy of Sith and three Sith lords. And all this is the minimum.
Yoda also beat Revan in one of these threads. Yoda looses to Sidious in ep3.
So?
You're using too many irrelevant ideas and a SuperShadow reference. Come now.