Surprised Tim Follin got glossed over in the OP, he's probably my #1 western music composer (with Jake Kaufman being #2). He left the industry far too soon, but what he gave us was stunning.
I also remember liking Bjorn Lynne's stuff back in the day (mostly his original tracks), but can't recall what tracks in specific (Wikipedia tells me he worked on Worms, Lemmings, Alien Breed, among others). He's worth listing in here too but I'm at work and can't get to YT to share samples.
Also never knew Jeremy Soule did the Total Annihilation music. Probably the only RTS game I put any time into (friends in college where huge fans).
I do think one of the big problems with western game composers' mindshare is that a lot of great soundtracks languish on shitty licensed games (Pictionary, Silver Surfer, and The Smurfs Nightmare should NOT have the soundtracks they do!), old computer formats not popular outside of Europe (even the OP was light on C64/Amiga music), or the indie scene. Most people seem to jump the gun and instantly associate western games with "AAA" games and their generic classical music compositions or licensed pop music soundtracks.
