I have used the Selle SMP Extra saddles on my road bikes for the last 6 years and I love them!
The Selle SMP saddles are available in various widths and padding options, but they can be expensive.
They do take an adjustment period,tho. Once you get the right one and get used to it,
it seems like it is not even there. (And, I've ridden them while weighing as much as 270#)
On my touring bikes I use the venerable Brooks B-17. Once broken in ti provides me with all-day comfort.