I've ridden in both.
The Sway a ways were much harsher when hitting things at speed. Almost to the point where the owner considered having them sent back to them to be re-calibrated. Flexing was fine, but felt stiff around town.
The OW Radflo's ride similar to my Icon's. Firm without any harshness. Even at stock weight (no bumper, no gear) it felt pretty good. I've said this before....if i was to do it all over again, I would go with 2.5" Radflo's with OW specs.