The best player in that group is Stich. But when they're on, Krajicek and Goran I think had more firepower to blow anyone away.
Ivanisevic comes last in the list when it comes to who had better games. And as much as Pete waxed about how "scary" Goran was to be matched up against, he feared Stich and Krajicek more in general.
I remember in 1998 when Goran and Krajicek had that titanic semi at Wimbledon. Pete must've loved the result of that one. Had Krajicek won (and he was playing very well at the time), I would've liked his chances of taking out Pete in the final.