Jon,
Have you played Maidstone? Its the only course I can think of which gives Fishers Island a run for its money.
I actually played Maidstone earlier this year, and it was one of those courses that I considered as a possible rival for Fishers for this question. Let's take a look:
4th hole - very pretty hole over water from an island tee, with the dunes in the background:
8th hole - gorgeous par 3 set flush into the dunes:
14th hole - one of the prettiest holes in golf (and one of my favorites), just beautiful:
So far, Maidstone is at least holding it's own with Fishers. Arguably neck and neck...
and then we see the 12th hole:
Not a bad hole by any stretch, but not especially pretty. And in this beauty pageant, that plain Jane relegates Maidstone (which I adore) to a distant runner up next to Fishers' four one-shot stunners.