Darth Plagueis vs Revan vs Darth Krayt

First Run

Darth Plagueis as of his fight with Darth Venamis, depicted in the first act of Darth Plagueis
Revan after defeating Malak on the Star Forge in Knights of the Old Republic (minus the SF's affects on him)
Vong Darth Krayt as of Legacy: Vector

Second Run

Darth Plagueis in his prime at the last act of Darth Plagueis prior to his death.
Revan as of The Old Republic: Shadow of Revan
Reborn Darth Krayt as of Legacy: War

For both runs:
R1: Sabers
R2: Force
R3: All Out

Plagueis.

Revan is by far the MVP. Krayt comes in second. Plagueis is out of his depth.

Revan wins the first run, Krayt the second.

Not sure about the first run, but Plagueis definitely wins the second.

How is Krayt or Plagues over Revan?

Yeah I'm not sure on round 1 but Reborn Krayt wins the second. More sure about that than ever at this point.

Plagueis gets slaughtered all rounds.

Round 1 is nebulous. Revan gets squished in the second round. Not sure between Krayt and Plagueis.

Krayt

Krayt probably wins in all rounds.

Krayt

Revan probably.

Krayt, imo.

Revan, likely

Run 1:
1-Revan
2-Revan
3-Revan

Run 3:
1-Revan
2- Revan
3-Revan

Revan dies.
Between Plagueis and Krayt, I think I'll side with the latter.

Plagueis or Revan

Run 1 goes to Revan.

Run 2 goes to Plagueis.

Krayt
Revan
Revan

Revan 
Revan
Revan

Revan both runs.

Revan wins in both rounds. Krayt gives him a decent fight.

Revan both