I like Sunday NFL Countdown because Mike Irvin is used to be one of my favorite players, and I think steve young does a good job.
Since I'm a huge 49ers fan, while he was playing I never like Irvin. But since he's been doing TV and radio (especially radio) I've really taken a shine to his funny, easygoing manner. And on radio, he gets to loosen up even more with his stories and such.