Alexrd said:

In my opinion, it's not about the dialogue (The OT never had good dialogue, either). It's about charisma.

Almost everything Han Solo says... heck, every SCENE where he is in, at least from the first two movies, still looks pretty damn fun on paper.

Take the exchange on board of the Falcon, for example, when Han taunts Luke about Leia - or when Solo is about to leave and Leia tries to prevent him. The dialogue feels alive and fresh, and there is unspoken thought and implication almost behind every line.

The "I was but a learner, but now I am a master" "only a master of evil, Darth", is cheesy cliché stuff - obviously, still delivered with lots of charisma ;)