I voted a 7.
One, I am bias against Star Wars and freaking force users. I do not like force users and nor do I like having my character be forced into a developement path. What the developers have to set up the situation before I play my character is all them, but when I start playing the character is MINE. If I wanted to pursue a course that would made me a Jedi so be it, but being forced to do so really pissed me off. Not even PS:T forced you to stay a fighter or forced you to play a wizard later on in the game.
I want to play my character, not the developers.
Another thing that pisses me off was the whole death thing. When a cahracter reaches 0 hit points or whatever you call it, the character is dead. Not unconscious. They way they did it in that game was so freaking cheesey I thought that idea came from Winsconsin.
The last thing that irked me about the game is the stupid freaking AIs that will not stand still. In the Star Forge I try to set up a nice little strategic combat and trap some of the foes I was going against. AS SOON AS I FREEAKING SWITCH CHARACTERS THE ONE I PLACED RUNS OFF! And when he or she ran off she ended up "dead." WTF was Bioware trying to do there . WHat is the point of giving us control over the NPCs if the bloody NPCs don't do as I told them to do in the first freaking place.
Anyway, that is why I give KotOR a 7.