The most overused phrase is "Got it Memorized". Though is still cool.
I agree about the "Sora...Donald...Goofy." At first I didn't mind, but it got quite annoying when everytime they adress them, the characters look at them one by one, while the group just stands there. This happened many times, I mean, can't they say "you guys" or just plain "Thank you." No, it has to be "Sora...Donald...Goofy."