I used to quite like Death Metal, but I find it really difficult going to listen to anything from the genre unless it's genuinely, mindblowingly exceptional.
I like Death and Morbid Angel, Bolt Thrower, Obituary, Deicide, At The Gates, Nile, Necrophagist, Decapitated, Vader, Quo Vadis, Suffocation and Cannibal Corpse. I'll rarely pick up a death metal record (or download one, for that matter) unless someone recommends a certain band.