Except that K'Kruhk didn't have to fight while carrying the Chancellor. Foul Moudama did and he still managed to fend Grievous off. That takes a lot of strength and skill. I'd say he wins this one.
No offence, but K'Kruhk did not survive. He was cut down during the fight.
It says on wikipedia that he survived. Yes, Foul was extremely skilled, but even without Palpatine in his arms and with Roron with him, he still died faster
__________________
"Today was good. Today was fun. Tomorrow is another one." -Dr. Seuss
K'kruhk is invincible. The man has been thought dead more times than should be possible...I'm giving this to K'Kruhk by virtue of 'cannot die' syndrome
Despite the fact that Foul did fend off Grievous, I still believe that K'kruhk takes this. One, becuase he never dies (even though Grievous literally killed him, and he survived even though Quinlan Vos sent flying down Coruscant) and two he is a Jedi Master. Three, it said in the Star Wars Databank that he fought Ventress and that the she fled, thus ending the battle. I don't what went on during that duel, but from what I read K'kruhk probably gave Ventress some fight if the Dark Jedi decides to retreat.