Mine; Zombies. :]

I wish IW, and Treyarch would put their own title game maps in the new games, and we could have that much more fun. I think MW3 maps are pretty much the same maps. They all have the same feel if you ask me. I like the 4 new ones pretty much better than the ones that came with the game. Most of the ones I like that came with the game, pretty much never get voted.

Good points on the QSing, and hopefully Treyarch will continue its tradition of keeping the sniper rifles from being too player-friendly.  Every time I see snipers on my team in MW2 and MW3 I cringe because I know 80% of the time they'll be QSing and the rest of us have to pick up the slack.

That said - my bigger hope is that in any new COD the kill streaks will be stackable and stealth perks will have some competition for use (like SP in MW2).  I don't rely on kill streaks or the mini-map, but minimizing the use of stealth perks and stacking kills will cut down on the camping and corner hiding.