I have a Ferris IZ1500 21 hp w/ a 48" cut, commercial grade ZTR, well worth the money, will probably never buy another mower as this one will last me until I can't cut my own yard anymore. Some say the JD's are good, but they are still $2500+, and just a different color from the Murray, etc. check some local lawn mower shops, they usually have some trade ins, etc., might be able to take a trial run with a demo etc.
GO BIG ORANGE !
I meant to behave, but there were just way too many other options available at the time.