Gilbert Melendez - fought for the UFC LW title twice
They did fine once the dust settled. They didn't live up to the initial hype though. Pride was often looked at as being 10 levels ahead of the UFC in terms of talent back then. They came over and looked rather average in comparison to the hype they recieved.
Rampage was the one guy that came over and made an immediate impact. The rest took a while to adjust. Some got over the hump(Shogun), some never did(Cro Cop).
They were supposed to take over, and show the world how superior Pride was, and it didn't work out that way. They did fine though. Their failure is just as overblown as their success.
But all those guys were brutally KOd and dominated. So was fedor....by even a MW. Before coming over, even Herring was supposed to dominate the HWs. Then came Cro Cop, who was said that he would rule the UFC for years to come. So, according to the pride fanboys, the former Pride fighters fell flat on their faces, by their standards. The truth is....most were exposed as being good or below average Fighters.