Corbin. Had one on a Versys and it was by far the most comfortable motorcycle seat I have had in almost 40 years of riding. It was the only Corbin I've ever sat on. Did several 1000 miles days on that bike with no butt problems.
I sold the Versys to a friend of mine and he said the same thing. But it already had 30,000 miles on it when he got it. It was hard at first but broke in nicely about 700 miles. I would buy another Corbin in a heartbeat.