Duc . . . painted myself into a corner? No way! Culled the herd, and limited the choices down to a few. . . definately. But that is the whole point, to eliminate the weak choices.
I would say that the Sub-CUTS are eliminated for the simple reason that they are too much tractor. They absolutely serve their purpose and are absolutely more versatile than Lawn & Garden tractors, but the point of this search is to find the best GARDEN class tractor which is a class of tractor that is LESS capable, LESS versitile than the Sub-CUTS. They are basically large lawn mowers, and used almost always as lawn mowers, and occasionally as snow blowers. Sometimes owners of garden tractors actually use them for something else, but probably the most common non-mowing chore is to pull a garden cart. We are not talking about a real tractor, we are talking about a lawn mower on steroids. Implements are not really an issue, most garden tractors NEVER see an implement.
All that said, mowing quality is critical. As mowing quality is critical, then all aspects of turf care become a primary concern. 4 wheel steering is much softer on the turf, articulated units that offer 4 wheel drive by default offer something akin to 4 wheel steering so they are favored for their light touch on turf while still gripping the ground with 4w drive to let them handle hills and rough terrain. Mowing speed becomes a premium issue if the arguement is carried to its logical conclusion, and that would favor a highly manuverable tractor, again that favors the articulated units.
I will say that I am driving the Ventrac tractors Tuesday morning and even without driving one, I am guessing that those tractors will be the best overall units based on their specs, manuverability, traction, mowing ability, etc. The Steiners are also a top choice, but Ventrac seems to be an "improved" version of the Steiner design by the same people who designed the Steiners. I guess I'll find out for sure Tuesday if Ventracs are better than Steiners. My first choice SO FAR (and based on NO ACTUAL testing) is the Ventrac 3000, the Ventrac 4100 and Steiner 415 would be the next logical choices. A Power Trac 180 would also rate very highly, but is less capable on steeper hills and carries a smaller finish mower deck which are 2 big strikes against the unit. A Power Trac 422 gives more capabilities but probably compares more to a SUB-CUT and still is not as good a lawn mower as the Steiners or Ventracs.
As much as I like my Cub Cadet, it is NOT as good as the Steiners I've already seen. The 5000 series Cubs are too large to qualify.
Bear in mind that my quest is a COST IS NO CONCERN quest to find the BEST. A $800 Sears discount model will mow the lawn and a $10,000 Steiner will mow the lawn. The premium units will mow a bigger lawn, faster, and on terrain the discount tractors simply cannot traverse.