v ride is more versatile and better for hills. It's also brand new and under warranty. Turf tiger would be way better if you are cutting a lot of 1 acre plus properties. It's up to you and the kind of properties in your area. Both are very nice machines. The turf tiger will do hills very well for a ztr but I think the v ride is a little better. If you have a lot of very small yards around you the turf tiger is going to be very bulky tough to manuever.
My answer...if you have mostly very big yards go with the TT. If your yards are smaller I would go with the v ride if you are only going to buy 1 mower.