My favorite character is either Paulie or Silvio.
My two favorite lines are:
Paulie:Hey Silv,you remember your first blowjob?
Silvio:yeah
Paulie:Oh yeah? How long did it take the guy to cum?

And then he turns to another guy and repeats the joke.

Another good one was when Bobby B. was talking to another fat guy and Paulie goes "Looks like one of them weight loss ads: Before,and WAY Before"
and then repeats it.