Most of these replies are ludicrous. I am by far a Geddy fanatic but undoubtedly, Chris Squire ALMOST matches him. If not for Squire, Geddy wouldn't have his tone, style, and most of his chops. If not for Geddy, Chris Squire would be the best on Earth.
As far as bass creativity and melodic playing, Geddy=8/10 , Squire=10/10. I know 20 songs from Moving pictures to Fly By Night and about 6 Yes songs from Fragile, 'Yes', Tales..., etc on bass. Geddy's most Squire-esque line is Closer to the Heart. Squire's most Geddy-esque line is Siberian Khatru.
Geddy's leg up is his extremely great sense of emotional writing. His following of Neil's syncopated and inhuman drumming is unparalleled, his high range vocals (usualy syncopated with bass as well) is unique, and his ability to play 2 instruments and sing at once is genuine. Geddy as a musician=10/10 , Squire=8/10.
The argument of Squire being 'better' or 'worse' is invalid because they are so distinctly unique. Squire writes melodic, thoughtful, complex lines. He adds a whole new layer to Yes songs that Geddy can't emulate. He can be the left hand of a piano and the harmonizing voice and the root of the guitar chord all at once. You can't replicate this.
Geddy= emotional, unorthodox, thoughtful
Squire= musically aware, unconventional, diverse...
and all in all, they are about tied, as if counting really matters, again, because they are completely different and unique in their own sense.