My favorite hated rivalry is UNO in Basketball and baseball. For some reason getting sauced on foam on a Sat. night at the dome takes the cake for me. I love beating UNO. Second would have to be La Tech. I really really hate them but they rarely come down here so I never really actually see them. After Last years encounter with MacNessee in the Swamp and wanting to crow-hop about 5 pokes, i don't really like them either. So it just depends on what your sport is or what boils your blood I guess.