F4LL0UT: Almost any game with music by Inon Zur. :P Naah, of course there's worse stuff in games with unprofessional composers but among all those famous high-profile composers working with live orchestras he's gotta be the worst. IMHO very unoriginal and somehow he always manages to make a live orchestra sound really cheap. It especially hurt in Dawn of War because Inon Zur's music from the addons totally contrasted with Jeremy Soule's great music from the base game. It had a far more generic style, just sounded pretty darn cheap in comparison and was even mastered worse (with the new tracks being actually extremely quiet, so in one match you'd sometimes get your ears blown away by Soule's stuff and then be almost unable to make out Zur's stuff).
Couldn't agree more. His music is the epitome of bland, copy-paste orchestral music. Although I think there was one track in Fallout: NV by him that I actually liked.
I think I have listed my favourite video game music scores on these forum at least twice, but here I go again:
American McGee's Alice and The Neverhood soundtracks are the ones that immediately come to my mind when I have to list memorable video game music.
And then there is the rest: I also really enjoy the soundtrack for Chaos Overlords, which reminds me of instrumental tracks of NIN. Fallout has a very good ambient soundtrack, and there are a few tracks in VTM:B that I really like, and then there's the obligatory Arcanum, although I do not venerate that soundtrack as much as others, since it can get very repetitive for me quite quickly, but those string arrangements are nice. Chrono Trigger has a pretty good soundtrack too, it's the only "retro" soundtrack that I still listen to occasionally. Oh, and I also liked a lot of tracks from the Deus Ex: HR OST. I have to include the Machinarium OST here as well, since I really enjoy most work of its composer.