Joey Mercury is perhaps the most underrated wrestler this decade. The guy is simply incredible. If it weren't for his issues, there's no telling just how far he could have made it in WWE.
Stan Hansen is also extremely underrated. The guy was just bad ass and would knock your fucking head off if given the chance. Seriously, his work in Japan is unbelievably great.
However, as a team, Angle and Benoit were better, and as singles wrestlers they were better too. But, even still... I'm voting for Mercury and Hansen. Why? Well, I'm a HUGE mark for Mercury for one, but also... I really think kayfabe wise Mercury and Hansen would have Angle and Benoit's number. Can't really explain it, just a feeling, but one thing's for sure... if this match were to happen while all four of these guys were in their prime... man oh man what a show they would have put on.
This is by far the best match in the 1st Round of the tournament, in my opinion. It definitely would have been an instant 5 star classic, no matter what ring it took place in.