Kawasaki FX801, FX850 and Kohler CH 740V ?

in practical usage how much difference is there between the fx801v (25.5 hp 44.6 ft lbs torque) and the fx850 (27hp 44.6 ft lbs torque) also the Kohler ch740v (25 hp 39.2 ft lbs torque) on a 60 inch deck mower My thoughts are not much difference between the 2 kawasaki's as torque figures are the same. I am looking at the exmark laser z FX801 $10500 (after 26% equine savings) OTD Scag Cheetah FX850 $10700 OTD and Kubota Z725 Kohler CH740V $9500 (after $1000 Rebate) OTD Any thought or advise would be great