I always loved the relationship between Riker and Troi. They just seemed to want the other to be happy, either with the two of them friends or as something more.
IIRC, there is an episode where Riker says something like that to someone. An empath on board the Enterprise said that he would make a move on Troi to piss Riker off and then he said something along the lines of 'You've read me wrong. If you could make Deanna happy, that would make me happy'.
That would be from "The Price". I watched that one last week. I, too, love the interplay between Riker and Troi. They always seem the best of friends, and know each other so well, but at the same time, you just know deep down something more is desired by both of them.
I also really love the friendship and mutual respect between Riker and Picard. One of my favourite parts with those two is the Captain Picard Day scene, with Riker making fun of the Captain, but not going too far with it.
I just watched that episode the other day, and my favorite part of that scene is where Picard says "They seem to have a rather exaggerated impression of me", and Riker waves the little Captain Picard puppet's arm and says "I don't know, I think the resemblance is rather striking. Wouldn't you agree, number one?" in this terrific Captain Picard voice.