I've played all cod games for PC and I like it.
I think this one is gonna be real great game ;D (hopeful without DRM)
http://www.gamespot.com/pc/action/callofduty7workingtitle/video/6263032?tag=stitialclk;gamespace
I've actually thought Treyarch COD games weren't that bad. I had some good times online with my friends in COD3 but never tried WAW. One thing's for sure, they are better at atmosphere than IW.
But by now I know what to expect from a COD game. I expect a solid game but nothing extraordinary. Just like all yearly activision dumpage.