I bought Halo 3 the other day: count me as number 5,000,001. I’ve been enjoying it: the story is intriguing. I’d say the third installment of Halo is, thus far at least, better than its predecessors.
I like the Halo series: it’s a decent first person shooter game with a better than average story. I played the original Halo on the PC and Halo 2 on the XBox. I haven’t bought Halo 3 for the XBox 360, but I probably will someday soon. I’d probably rate both of the first two Halos at somewhere between 7 and 8 out of 10. Good solid games, nothing earth-shattering, but fun.