I'm with the John Williams and Jerry Goldsmith crowds, though I can't say I've liked much from Williams in the past 5-10 years. His first 30-35 years were brilliant though.

Howard Shore's LotR score is absolutely brilliant but I can't comment on any of his other works. Trevor Jones has done some nice stuff. My jury is still out on Hans Zimmer - I sense that I really should like his stuff, but there's always something that holds me back. He deserves a closer listen on my part though. Danny Elfman's stuff I like but much of it sounds too similar.

I'd have to put William's original Star Wars trilogy (Hope, Empire, Jedi) and Shore's LotR trilogy as the most musical and pleasing to listen to from beginning to end of the soundtracks I have.