Bret/Shawn has been, and probably always will be overrated. Meltzer gave it ****1/4 - **** for Rock/HHH. ****1/4 for Lesnar/Angle - ***1/2 for HHH/Benoit. Personally, HHH/Rock is the best out of the four, more action, good story telling, crowd heat, and both men were motivated.
HBK and Hart aren't a match in the ring, unlike HHH/Rock.. They generally refuse to work hard with each other, not wanting to put the other man over in the slightest, which hurts the match considerably. The only match I can recall that was good between the two was the SurSer '92 match, long before the hatred, jealousy, and insecurity from 1996. The Iron Man match could have been great, Shawn and Bret both were very capable workers at that point in time, but their unprofessionalism hindered whatever they could have possibly accomplished. I haven't seen the match in a few years, but I remember enough to know that it's boring, and not worth viewing.