The current generation is FILLED with great under-rated games.
Bayonetta, Vanquish, Bulletstorm, Brutal Legends, Splatterhouse, the Earth Defense Force games, Metroid Other M (the story was badly told, but that doesn't mean the gameplay wasn't fun), the Final Fantasy 13 games (that's right!), Mirror's Edge, Ghostbusters (the PS3/PC/360 version), Half-minute Hero, Recettear, Sanctum, Yar's Revenge (a sequel to the old Yars' Revenge on Atari) and a whole SLEW of downloadable games (Wizardry: LoLS, Zen/Marvel Pinball, Spelunker HD, Sonic 4 Episode 1, Tecmo Bowl Throwback, After Burner Climax, Real Steel (PSN, not iOS)... amongst others).
So much good stuff that gets ignored by the general gaming public.