I say borderlands.
Played it for about 4 grueling hours, telling myself "it must get better, it must get better...", inviting a friend for the 4th hour because the coop was oh-so-popular.
I can't believe people grind this thing. It was neither funny, nor witty nor challenging nor anything - just bland desert with bland enemies beeing killed by bland guns.
I usually LOVE Diablo styled hack&slash games with slow character progression, but there was NOTHING in this game keeping me awake. No cool moves, skills or weapons I WANTED to use. No story that kept me going. Even the visuals felt like a sweaty sock in my face. I can only take "bland orangy desert" for so much. Worst of all: the interface. On Pc, you play against your interface, not against those mutant-hobos or whatever.