I nominated the 13th at Rye, but I'll cast a vote for the 11th at Tain.
The diagonal nature of the blind second shot at Rye is interesting, but quite awkward ... you are just never sure exactly where the hell you are aiming from the fairway, unless you have played the hole many times. The Tain hole lets you know where you're going, but the dune in front is so close that you have to make the full carry or you're in trouble. Having the sea right behind the green gets it a bonus point, too.