5. Civilization 5
Dun dun duuuuuuuun! Now before you get out the torches and pitchforks let me add the caveat that I only play it with the Community Balance Patch mod, which really makes an entirely new game of it and adds many features from Civ4 as well as original ideas while fixing 90% of what's wrong with unmodded Civ5. I can only highly recommend everybody who was disappointed with 5 to try it out. You won't regret it!