That flying knee was insane so I have to give it too Fisher vs. Wyman. Guy goes from nearly being tapped out to pulling off one of the coolest moves I've ever seen.
The ref had to stop the fight when it comes to Gracie and Hughes. Hughes was in a very controlling postion and if he really wanted to he could have done some real serouis damage to Gracie. If you payed attention to the replays, it seemed obvious to me that Hughes knew he had the fight and didnt really want to hurt Gracie. Thats would explain why some of the blows didn't look that bad. You also dont want to be the ref that let the fight continue for those 20 seconds and end up having Graice get a serouis injury.