I have a Ferris, 72", 32hp. zero problems. 4 wheel independent suspension, deck moves with the suspension so you dont scalp.
I liked the Kubota with the hydraulic deck lift and the articulating front axle. I liked the Scad and the Toros too.
All of them are built like a tank. The Ferris at the time actually had the thickest frame. The deciding factor for me was the suspension. I broke my tailbone a few years back, after testing them all (each dealer brought one out) my tailbone wasnt sore after the Ferris.