The one bit I really didn't enjoy in the original trilogy is Obi-Wan and Luke in Return of the Jedi.
Force ghosts had a bit of mystery to them before-hand. In this movie, he just sits down and has a heart to heart with Luke down on a log (heck, why didn't they have a campfire??? "If we're workin' together, we might as well drink together").
I know exposition scenes suck, I hate doing them myself, but... there was just a certain clumsiness in the way they laid all the facts out in that scene.
I stand by the 'first-catch-of-the-day' line. Come on, it's great. Especially when he gets ion cannon'd a few seconds later. Come on.