Halo definately. It's a B movie (if nicely done B movie) story that's treated as though its a modern epic that serves do deliver a great shooting/online experience. But the reverence for the backstory, etc. and how Halo 3 was marketed as if the title and its characters were worthy of mythic status was just so overrated and overblown.
Also, while its a great shooters its not that great, and every entry in the series has shown major issues - from the terrible Library level of the first, the mis-handled story and dual protagonists of the second to the rushed feeling of the the third. But then it's clear that over time Halo has become about the MP and the idea of the story rather than what's actually in the SP campaign.
But hey, sometimes something has to be very very good to be truly massively overrated, so its not that bad right?
Try to be reasonable... its easier than you think...
