i'm not that impressed with gary, but i do think he was better than both ant and jay (from what we actually saw).
jay is a good guy, but he didn't get any good laughs until half-way through it seemed....and when he uses the filler lines over and over in the set (am i bothering you? let me move over here, it's almost over.) it is probably because he wasn't getting good laughs to that point. he finished well, but gary benefitted from following him, anyone would seem upbeat after that.