I've only been going to high school varsity football games for the last 5 years. In that time, I've found that my favorite stadium announcer is whoever it is that calls the game at Victoria Memorial Stadium. The guy really does a phenomenal job of spreading the credit. Offensively, he'll name the guys who made the key blocks along with the ball carrier. Defensively, he names who made the tackles, who applied pressure, etc.
As a teacher, I love it, because I get to hear the names of more of my students than at any other venue. Unfortunately, I've only attended 2 games there (they are not in our district), but I like that announcer.
Who else is good?