Anachronism said:
The first time I heard Minsc say "Go for the eyes, Boo! GO FOR THE EYES!", I had to pause the game for a few minutes because I was laughing so hard. Plenty of his other lines have made me smile at his insanity, but nothing can quite match up to his stunningly awesome battlecry.
Baldur's Gate pwns. An even better part that no one knows about is this:
-If you Ctrl+Alt+Delete to shutdown BG II then it brings up a pop-up that says,
"Are you sure you want to quit? Boo will miss you..."
-Lol just anything about Boo is amazing, bioware is too hillarious.
-In KoToR there are several times when you are trying to do something compassionate and kind, then your trusty droid companion says something like "Statement: It would be much quicker to simply blast this one's puny head off, master. Oh and how I would enjoy it."
-Also to get off the Bioware topic, in Gears 2, I love the part where B. Carmine says "If you wore one of these helmets, you wouldn't have to breathe in the dust!", to which Dom replies, "Yeah, but then I couldn't see snipers very well, could I?"