My Kubota L 4740 is a great tractor, however, after an hour in the field bushoging I feel like I have been riding a bull. Is there a comparable John Deere unit that is more stable ? The 4747 also heats up in the summer after 25 minutes of cutting sunflower. Not Happy with this unit, purchased 7-22-09, 55hrs.
Bandit
When looking for a field tractor and caring about the ride quality I look at these factors.
Wheelbase (longer and wider is more stable and comfortable as it smooths out the bumps better)
Seat/Seat suspension (a good seat with support and excellent suspension is ideal, air ride is tops in my mind)
Tires (Radial tires are ideal for smoother ride and better traction but cost more money)
New Holland had their supersteer front axle and that option pushed the front axle forward and it made a huge difference in ride quality compared to the same exact tractor with standard front axle. Since not every brand has that option you will want to look more towards the seat/seat suspension and upgrading your tires to radials. Almost every utility tractor is going to ride the same if equipped the same, the color paint has no effect on the ride.
And if its really a major issue for you, John Deere and a few other high end tractors have suspension systems on their tractors to smooth out the ride even more but that option alone most likely cost more then you paid for your entire tractor.
Also, another factor I failed to mention in regards to ride quality is your ground speed and ground condition. No suspension in the world will help if your traveling too fast in rough ground. It just doesn't work that way. If your fields are rough then slow down. If their so rough your operating slower then you want then rework the fields and smooth them out so you can mow faster. Good luck to you.
And I don't think you can go wrong with either Kubota or John Deere utility tractors. Their the two brands I look at mainly now and both have great reputations.