I know it's silly, and know it has absolutely nothing to do with anything in the main plot, but mind is:
"Cut to the left. I'll take the leader." This is the one I say the most. Bonus points if you can tell me who said it without looking it up. Others include:
"Red Three, Red two, pull in."
"Got it."
"All wings report in."
"Red Leader standing by."
"Green Leader standing by."
"Grey Leader standing by."
"Lock S-foils in attack position." (Mainly because it's the start of the battle, and I get chills every time I hear it).
I have a thing for the space combat. Can you tell? Now, if we were including books, tons of stuff from the X-Wing series, and Mara Jade has a good one in Specter of the Past or Vision of the Future:
"Would you like to get off of me know, or were you just getting comfortable?"