For me it would be "Hi welcome, don't kill me", and one you didn't put up there "we are NOT friends, we will never become frieans" Syd to Sark and when she said "Not really a vacation if your forced to go... no offense, cute country" Syd to jack and irena
It seems like nearly every line that comes out of most of the characters' mouths (mostly sweet ones from Vaughn, or just plain funny ones from Marshall) is quotable.
Ummm what about the 1 (not quite correct) In the getaway! "Hi, I'm Marshal J Lincoln and I'm about to save your life."
and every one loves the "Or what, I'm grounded" 1.
ooooooooooh or the 1 where marshal talks to the guards about him being the worlds biggest pez collector!