Far Cry 2 I guess. Everyone was complaining about something. Whether it were these forums or Amazon.co.uk reviews. Sure, it was flawed, but I seeing as it's realistic approach and African setting is the polar opposite to the fantasy, run'n'gun-ish gameplay of the original, I really wasn't expecting to like it.
Final Fantasy XII. Everyone goes on about how it's not like the other Final Fantasys which is the precise reason why it's so good. Gone with the arbitrary, idealistic love story with a clear main character sided with pointless, no strategy battle sequences; in with a political driven plot with enjoyable, meaningful fights.