Over all, I was more impressed with KOTOR (though I liked tFU). I would buy either for the statblocks for enemies, but unfortunately, WoTC has yet to put out abook where they consistantly stat out the enemies correctly.
I tried to run a quick anti-mandalorian KOTOR game with friends and was depressed to find they had only added half the level to about half the enemy's defenses.
ANNOYING!
Anyway, KOTOR, I feel, has more useable character options. tFU has a lot of good to it as well, but not like KOTOR.