I am biased on the matter, but I would say Klos considering what he achieved with Dortmund over 8 years and then with gers. On another point I would argue that Goram had significantly better center backs in front of him (Would I be wrong to say this?) Klos has the best clean sheet to games ratio of any Rangers GK to play over 50 games for rangers. (149 in 298) He also captained the club and was a complete professional. Goram we shouldn't forget disgraced himself once as a rangers player (1994- missing flight/final). I love watching old footage of goram, and he was very good at making spectacular saves, as was klos. Stefan as someone mentioned already here was incredible 1 on 1. Probably as good as anyone i have watched in those situations. As a Gk enthusiast I know that certain people prefer certain types of gk's though so each to their own.