Meteor Doggy, Internet Scallywag.
The BOII campaign was balls-to-the-wall in your face, not giving a care. It knew it was over the top, and it totally embraced that attitude. All the characters have gravelly voices, and are all hardened badasses, and the admiral is just beautifully over done.
I loved the campaign. It didn't take itself serious at all.
Zombies was excellent, with a new gamemode and was incredibly entertaining. Sure, Treyarch did introduce a few new things for the multiplayer, but they didn't take in all the crazy, and awesome things from the campaign.
But at the end of the day, it is still just another Call of Duty. Imo, the best CoD since CoD4 by a good stretch; but if you think that this will pull in gamers that didn't enjoy previous titles. It won't.
[Edited on 12.31.2012 1:55 PM PST]