There are lots of nice tractors out there; our fellow posters have noted several. My slant is green, but I do not know that much about other brands. I can say the 3720 I owned was a very nice and powerful tractor. I traded only because I wanted to upgrade and an exceptional, once in lifetime, deal came up that I took. Otherwise, I was very pleased with the 3720. I think in that size tractor it has one, if not the most, of the most powerful engines, and you can really tell it. Personally, I would pay the extra for the additional features and comfort over the 990 in the JD line, but that is just me. You and others might see that differently. To me, and has been stated many times, the dealer is the starting point. If you have a good dealer, it almost does not matter what he/she sells, it likely will go well. If you have a chance to purchase a machine like a 3720 and you have a good dealer, then you have scored. I also would not make any decisions until I drove each machine you liked and decided from there.
John M