Bar Bergkamp, I don't think any of the others were "world class" at that point. As PSRB says, each had their issues to overcome - they all proved themselves to be outstanding players for us, but I still don't think anyone other than Bergkamp or Henry (and maybe Overmars for 2-3 years) would have got in an all-time world XI. Comes down to your definition of world class I guess, which is pretty meaningless all told...