I would go with either the bobcat or the husqvarna PZ line of mowers. I like bobcat and have never owned a husqvarna but the new PZ mowers look incredible and that would probably be my first choice. Honestly I would not hesitate to buy either one. Now the Ferris does sound like it might suit your situation better due to the full suspension.
2013 Gravely 460Z 29EFI
2011 Gravely 36GR
2008 Gravely 160Z
2004 Gravely 34Z
1998 Lazer Z HP 48 (old faithful)