You can't go wrong with a sella italia flite, I've got(and gone through) a few of them. Comfy, great looking and you can find them anywhere...

If you want to be old school, how 'bout the cinelli unicantor? Those are nice too, I've had a couple of them as well.

Or maybe a kashimax five gold? The sickest(hardest) saddle I've ever owned.