I'm actually quite satisfied with the 360 version. There are a coupe of examples of the AI being absolutely borked, (TIE factory in particular) and some of the Holocrons require acrobatics of such precision that it would put Nightwing to shame, but I am pleased overall. I am not entirely sure it was a good idea to allow the winning of over half the achievements on the first playthrough, as it lessens the incentive to re-play, but I will anyway, what with being a completionist.
A decent Star Wars game needs to feature the genuine flair of Knights Of The Old Republic, the extended customisation options present in The Sith Lords, a degree of control over The Force as demonstrated in The Force Unleashed, and an arcade ship section as seen in Rogue Squadron 2 (not 3, Rebel Strike can burn). Meld all those together into one game and make it about 50 hours long, and I'd be satisfied.