Guitar Hero?
Although I agree that The Rock Band series is better than the Guitar Hero series (especially now, as the GH meathead marketing gets increasingly unappetizing), it seems like Guitar Hero should be included in any best video games of the decade list. Although there were certainly other rhythm games before…

Buffy vs. Angel (less broad, more brood)
I'm always surprised how Angel rarely makes the same lists as Buffy. In my mind, Angel was a much more watchable show that got rid of some of the irritations of Buffy. It always seemed much more adult— although I loved Buffy, the Saved by the Bell-ness of it grew a little…