Libertine . . . based on a series of "qualifications" I have layed out, a 2 wheel tractor is not up to the size of the tasks needed by me, or by most people. While I am hunting for the perfect tractor for me, I am also trying to be objective regarding the search and my qualifications are that the tractor be first and formost a mowing machine capable of mowing in all terrains over several acres. I don't think MOST people would consider mowing several acres with a BCS. Using a sulky is not really practical because if I detatch it on my upper property then what I ride on the lower lands? I'd have to go back up, re-attach and then get it down to the the valley to do that?
Much has been talked about my slopes, but they comprise less than 15% of where I mow, so the tractor must mow equally well on steep slopes, reclaimed pastures, and smooth lawns to qualify as one of the BEST to make the cut.
Again, MOST lawn & garden tractors spend 85+% of their running time mowing the lawn. To be the BEST, the unit must function flawlessly as a lawn mower.
It must be SOFT on the turf (which is why the 4wheel steer units and the articulated units end up on the list).
It must be capable of climbing without tearing the turf (favoring 4wheel drive).
It must be capable of slope and tough terrain use (favoring 4wheel drive-articulated units).
It must be capable of mowing in tight spots (favoring articulated units & 4wheel steering units).
It must take a reasonable amount of attachments as would be used by MOST owners (AT LEAST a mower deck & snow thrower). And remember, MOST people ONLY use their garden tractors for MINIMAL tasks beyond mowing, many do not even use them to blow snow, so offering 20-to-40 implements that MOST people will never own is not a critical factor.
All the above said, there are very few units that do all those things reasonably well. Deere has 4 wheel drive units, and 4 wheel steer units, but NO 4 wheel drive with 4 wheel steer units. Cub Cadet doesn't offer them either. Toro, NH, Ingersoll, etc all fall short as well.
Steiner, Ventrac & Power Trac all have 4wheel drive & articulated bodies which allows them to be very soft on turf, yet provides superior traction to climb most slopes. Giere Mountaineer II is more traditional and lighter built, but offers a unique 4wheel drive & 4wheel steer mechanism that is pretty amazing.
Power Trac offers the most versitility, but is not really designed as a mowing machine so of the group of the BEST, I would objectively rank it LAST for MOST people who would never utilize its abilities. If you want to compare a PT to a standard CUT, then I would rank it near the TOP of that list, but CUTs and garden tractors are used for different purposes. As pure mowers, Steiner & Ventrac are probably the best units because they were designed for golf courses and similar commercial operations as primarily mowing tractors that are also capable of doing some additional BASIC landscape operations.