I had a Danny Grey on my 09 CVO road glide a nice seat, looked real good and pretty comfortable. I still have a mustang on my Fatboy, it to is comfortable just did not look as good as the Danny Grey.
I had a corbin solo on my 12 CVO Road glide, looked the best, an a little more comfortable than the other two. I have a corbin solo on my 15 CVO road Glide.
On my 13 CVO Road King I have the stock seat with gel added and driver back rest added. Looks good, almost as comfortable as the others.
For a long day, 600 plus mile the corbin is my choice, even with it being as hard as a rock. The modified stock on the CVO King, is good and I have done 600 miles in a day on it. I have done 600 on the mustang, and was worn out. I have done 600 on the Grey a bit better than the mustang but not as good as corbin.