I really enjoyed the first KUF for the Xbox. Its mix of strategy and Braveheart-style slash'em-up action was great. Haven't gotten around to trying the second game though. Might have to pick that up if it's compatible with the 360.
Funniest thing about KUF was that the word "Pope" was censored out of the dialogue audio. So the characters would say "I can't believe the *silence* is doing this!" I had no idea what was going on at first, and thought my Xbox's audio was screwed up, or that whoever they were talking about was so utterly evil that they could not utter his name for fear of reprisal.
But nope. They were just saying Pope.