I have so many favorite lines.
When in the heroic for the ore and mining complex in Tatooine.
"Of all the lazy, rotten, underhanded schemes... why didn't I think of that?"
The main line of smugglers: "It's hard to be humble, knowing how great I am."
Accepting Hammer Station: "If I die, I want a statue built in my honor. Something impressive.. and expensive.
Finishing Taris's bonus missions, "Name something after me in my honor with an impressive plaque."
"Since I saved them, name the species after me."
But the one that takes the cake is when on Nar Shaddaa talking to the hutt and the republic diplomat: "You two are adorable! The wedding will be spectacular."