They may not be the "best announcers" in terms of getting everything correct but they are "my favorite to listen to". Partially because they cover my favorite team and also because they keep it interesting.

I've listened to guys that were very good at giving details (down/distance/players involved) that are just down right painfully boring to listen to. If the absolute details is all you're after you can get that on ESPN's Gametracker or read it in the DSM Register.   I'd rather listen to Gary and Ed.