Wider does not necessarily mean more comfortable. I find the big comfy-looking sprung seat on my Schwinn Phantom to be a torture device on long rides, while the skinny Brooks B-17 on my Birdy folder is comfortable enough to ride for hours without needing bicycle shorts.

You need to break in your backside over a period of 2 to 3 weeks before you begin to feel comfortable riding for longer distances. On my first training ride after the winter I will go out for 45 minutes and ride a slow pace. Then I'll stay off the bike for a couple days until the pain subsides. I'll ride again, and then take a one-day break. By this time the pain will begin to go away, and I can gradually ride longer and faster. After a couple of months a 4 hour ride becomes bearable, and after 4 months I am good enough for a double-century.

Having ridden umpteen dozens of different bikes, and even more saddles (I have worn out three saddles on my favorite road bike) I have found the garden-variety Brooks B-17 to be the most comfortable. YMMV