I loathe reality shows in general, but the ones with filthy-rich, faux blue blood brats piss me off the most. Growing up Gotti, Cattle Drive, and anything that involves Paris Hilton drive me mad. Maybe it's jealousy or something (I would love to have my every wish pampered for, and to not be held accountable for my idiotic actions), but regardless, things like that just make me sad for the american public to actually want to watch that crap.
My girlfriend loves it though, so I end up learning about their misadventures all of the time. Cattle Drive was amusing the two times that I got stuck watching it, but I would be content if that show fell off the face of the earth tomorrow...