What would you score each Halo game in the 1 out of 10 scale?

[txrattlesnake]

Halo: Combat Evolved 9
Halo 2 8.8

I haven't played any of the 360 Halos. (I did play the demo for Halo Wars though, and with more units, it could have been an 8.5 to 9. I like story driven rts games more than fps games).