Sorry Dave, but it's not that simple because every human is built differently. Many find the Corbin too hard, while others love it because once it has broken in after 1000miles it gives all day support. I tried the Cannonball, and while it is a little better than stock, it is not that much better, but some love it. The Mustang is usually seen as the best off the shelf option generally, as is Ultimate, but they don't make F3 seats (unless they have started since I last checked). There is a great thread on here where someone did an exhaustive comparison of 3 seats. Sorry, but I can't remember what it was called, but a search should locate it. If I remember what it was, I'll post the link. What I am saying is that what works for one individual may not work for another.
If you want "guaranteed" comfort, the best bet is Russell Daylong. They will take your current seat (or you can buy a cheap used one on eBay), along with photos of you on your current seat, and will modify/build a seat that suits your particular requirements and size. They "guarantee" comfort, so you can send it back for mods until it's perfect. I am on my fourth, and they are essential for me to give me more legroom for my 6'7" frame, and also more support for my 310lb gut.
Have a good search on the forum though, as this question has been asked and answered many times, and you will find plenty of valuable information to help you make a call.
Here's the link......it's for a tall guy, but the research he has done is superb.
http://www.spyderlovers.com/forums/...sons-for-a-Tall-Guy&highlight=Seat+comparison
Pete