It was one of the best ones I have watched as well. The SMU vs BYU game back in 1980 rivaled it when BYU overcam a 20 point deficit with 2 minutes and 33 seconds left to win the Holiday Bowl that year 46 to 45.
I was at the SMU-BYU game. I had a horrible head cold and kept begging my dad to leave early. He kept saying "Nope, we drove down and we're going to stay until the end." We were one of the very few fans that stayed. I will never forget the SMU band that was standing on the edge of the field, all ready to rush and celebrate.
We also sat in front of some very optimistic BYU fans, who kept saying "BYU can win. BYU can win." However, they left midway through the 3rd quarter.