As a couple others have mentioned, Far Cry2 was beyond painful, dragging your ass across the map for the same missions over and over again just crew insane. Each mission was the same, and the enemy with their typical far cry vision of being able to see any distance and through any object to see you was one of the worst things ever. Then the ending was even worse, then the game.
FF12, GTA4, GTA:SA and the second half of bioshock, are also up there.
But one game i could not get enough of was Saints Row2, i went from mission to mission wanting more.







