I am starting my lawn business back up. I sold my 2008 exmark lazer z hp 52 inch cut when I planned on going away to school. Plans didnt work out so im back to mowing! I have to buy a new mower. Im stuck between these three brands and I need help. Im considering going back to Exmark. My lazer z was nice and didnt have any problems. I like toro's 4 year warranty on the toro Zmaster z500. And then theres the Ferris IS 2000z

So someone who has owned these give me some feed back please!

Do I buy the exmark lazer z? The Ferris IS 2000z, Or the Toro Z master z500?