BigPin,
As soon as I read the topic, the Bunch v. Bradly match immediately came to mind. It was one of the best matches I have seen. It was amazing how all eyes in the stadium seemed to be drawn to that mat. There are a few others that always caught my attention:
Speer
the Older Lattimer
Jeff Boyle
Thomas Rhodes (Both the good and the bad)
Tait Weatherbee (this is a homer pic, as I've known the kid forever)
Sprigg: very active for a big guy
Taplin: So aggressive and physical

I didn't include kids that I coached directly, because there have been some very exciting matches and kids over the years and I didn't want to slight any of my kids. All their matches were exciting to me.