I agree completely.
Bespin was the greatest, it was the first level where you could kick stormie ass, as well as the first saber fighting level. Plus the level design was great, it really promoted Jedi style fighting.
And Nar Shadaa was definately the worst, the level design was the opposite of Bespin, if you tried to fight with style you died a very vertical death. Plus the snipers being unblockable... Rrgh, I'm on this damn level right now while I replay the game...