It basically comes down to what you asked on all counts, Blade tip speed, Reliability , Endurance and Fuel consumption. I run two Kawasaki engines at the present time the FJ 180 KAI, and the FS 541V 15hp. I also have a Honda 190cc and a Briggs 175cc along with a Kohler 22 hp Courage. I can tell you that the FJ 180 kai will out preform the Honda and Briggs hands down on all counts and the FS 541 will do the same to the 22 Kohler. As people know here you wouldn't find a bigger fan of a Kohler motor/engine than myself but anything I buy will have a Kawasaki nothing else. Imo Honda and Briggs either one has never made it in the commercial market with any of there engines, Kohler and Kawasaki have, there proven.