I just put Toto toilets in my house. I found a local supply place that sells me the Toto Drake model for not much more than a Kohler or American Standard from Home Depot. I started out with one Drake because it was the only one I could find in Bone, and ended up getting 2 more. The quality is noticeably better than the American Standards I would normally buy from the box store.
American Standard used to be the top dog in quality and I'd say they've fallen to 3rd place behind Kohler and Toto.