There is no genre that I would completely pass off as there is good music in all of them.
I listen to classical (from renaissance to neo-classical), jazz (from early big band to fushion), rock (from heavy metal to classic to christian), blues, techno, punk, some rap, and some opera. I don't own any country music but there are quite a few songs that I enjoy.
If I had to pick a specific type of music, I would pick classical (the period or the genre, depending on how specific my selection had to be)
P.S. I think it is also funny when people claim to hate a specific genre, because most of the time those people have never really "listened" to the music. Sorry to go on a tangent here but it is my pet peeve when people don't "listen" to music, it's just background noise to them and it drives me nuts, when I listen to music I listen to it and focus the vast majority of my attention to it. If I can't focus on it enough, I don't listen. For instance, I never listen to music in my car because I focus on the music instead of driving. Sorry about the rant, I just get pissed off when people treat music as mindless background noise.