The best saddle for any butt, bony or otherwise, is one that fits. For me, that is indeed a B17, or the hardshell job on my 'bent. But as I said that's FOR ME. Every butt is different. What ya gotta do is try a bunch and find one that works. Many shops offer a 30-day saddle trial period. Find one nearby that does, and go to town!
SP
Bend, OR