My initial problem with the game (KOTOR II) was that I really didn't give a crap about any of the characters.
I know, I know... it's a video game and all... but in the original, at least the characters were SOMEWHAT sympathetic. Carth was a whiney bitch, sure, but he was a whiney bitch because his former mentor blew up his entire planet and killed his family. Canderous was a murderous warmongering psychopath, but he still had a sense of honor and willingly grouped up with the guy who had formerly whipped the snot out of his entire order because he respected the man. Hell, even Jolee was the falen Jedi type who at least wanted to set things right. Yeah... I played and completed this game almost 2 years ago now and I still remember these details because that game drew you in. When I found out that I was Revan, my jaw literally dropped and chills went up my spine. That was some damn fine game design.
But KOTOR II... *sigh*... where do I start? There didn't seem to be any freakin' reason for anyone to be there. Atton was... was... what was he? Wasn't there some hinting that he was a real bad dude at some point? The handmadein was along for what reason? Sometimes it seemed like she was sent along to keep tabs on the Exile, and other times it seemed like she was a runaway. And Atris... don't even get me started. Her motivations, background, and general overall purpose in the game was so convoluted and, at best, contrived, that I at no point had a real handle as to why she was even in the game. Then there's the Miriluka chick who's involvment was so nonsensical that I never even bothered to learn her name.
I know about the Lucasarts fiasco, with them forcing Obsidian to release the game early. And for that I sincerely pray that the fan backlash over this game doesn't unjustly effect Obsidian, because you can almost see the ghost of a good game trying deperatly to force it's way through the cracks in a horribly botched rush job.
In response to Marvolo's question about the ending... there was no ending. That's how it ends. Seriously... you beat the last "boss" and the credits roll. No resolution, no "where are they now", no hint to a possible sequel... nothing. It would be like watching the Return of the Jedi and right after Vader chucks the Emperor down the shaft, the credits roll. Does Vader reconcile with Luke? Does the rest of the Empire fall at the pudgy hands of the Ewok force on the planet below? Who the hell cares! The Emperor is dead! Roll credits!
And to 20th Cent's comment about Battlefront II... you might want to do some serious research on that one before you shell out the fifty bucks for it. I can't speak from first hand experience, so take everything I say with a grain of salt, but all signs point to it being a pretty shoddy effort. And all of my gaming buddies in my old WoW guild pretty much shot down any chance of me spending the money when I asked them about their personal experiences as well. If I were you, I'd pick up a copy of Unreal Tournament 2004 and look for a Star Wars mod. (UT2004 kicks some serious ass by the way... it's easy to see why they haven't made a newer version yet since this one is so close to perfection... again, this is just one man's opinion.