Nude is a definite favorite of mine. I held off on hearing it for a long time, because the 3 albums that came before it were a bit of a letdown(except for the excellent "Echoes" off of Breathless), but I'm glad I finally got around to it, because it's a classic. Snow Goose and Mirage are both classics as well, I enjoy Moonmadness too. Their Debut is just kind of "meh" for me, personally.