Going with the unintentionally filthy lines mentioned a couple pages back, how could we forget this gem:
"Luke, at that speed will you be able to pull out in time?" "It'll be just like Beggar's Canyon back home . . ."
For the sake of being even remotely on-topic (lol), I'll say that I consider ESB to be the best film dramatically, but SW is still my favourite overall, as it's the most fun and wins for sheer awesomeness.