Just replaced a set of F1 GS-D3s with Super Sports. Can't comment on ultimate grip 'cause I don't push my wagon hard. The Michelins are less jarring over expansion joints or rough roads, but the Goodyears were close to 5 years old when they were replaced so perhaps age is the reason behind the comfort difference.
"Sweep the leg!" - Sensei Kreese, Karate Kid