Have you seen straightedge kids with neon clothes headbanging to hack DJs? Now you know.
EDM is worlds apart from IDM, which is actually mostly excellent.
Skrillex =/= Aphex Twin.
I should add that I don't listen to holiday music either. It's invariably shit. The one exception is Sting's "If On A Winter's Night A Traveler" album.
I don't like corny feel good radio music, overproduced music, bit-crushed music, or artificial-product music. Can't stand Radiohead or Muse. In fact, fuck Muse and bands like them.
I do like: Folk, Blues, Jazz, Black/Death/Doom/Metal, 80s/70s Prog that isn't full of itself, Peter Gabriel & anything he touches, some Post-Rock, whatever you classify Oceansize as, Bluegrass, Soul, Motown, Funk, old-school hiphop (before it was all about cash and guns and hos), 60's Singer-Songwriters, Classical, Baroque, Chamber music, noise, and fusion.