Favorite is Trespass; I just love the mood of that album. Trick is #2. Invisible Touch is the worst for me. Worst album and song. I remember seeing an interview with Phil talking about how Invisible Touch is "a great pop song". I love good pop, and that song is not it!
Another cool discussion. Fave line up is the Red era; least fave line up is the ConstruKction Of Light era and my pick on who I would have loved to see in King Crimson is Peter Hammill who, to my ears, is the vocal equivalent to Fripp's guitar insanity.
Love both albums and I've had more than 40 years with both of them. That said, Trilogy has always been closer to my heart and is one of the top 5 albums that I would reach for to re-live 1972 (the others being Foxtrot, Close To The Edge, Argus and Thick As A Brick).