I'd be more onboard with TSO if their guitars didn't sound overprocessed as hell, but I'm all for 'em in theory.
Mannheim Steamroller, however....I've only really started to notice their "music" since I moved upstate, and now that I do, not only is it fucking EVERYWHERE during Christmastime, but the people that actually like them and buy their CDs tend to be soulless, hollow shells still walking like human beings.