I love the Mel, but thought their famous 6th hole was not great - blind shot, right angle dogleg? I also was dissapointed in 17 (composite) with it being just too narrow and close to the road to really pull it off. I would guess you could assign a worst hole to nearly any course. Starting with the top 25 (golf digest version)
(1) AUGUSTA NATIONAL G.C. - Uphill 17th or 14th.
(2) PINE VALLEY G.C. - Hmm....Maybe the first
(3) SHINNECOCK HILLS G.C. - 6, split fw doesn't work
(4) CYPRESS POINT CLUB - 8 or 9, too short
(5) OAKMONT C.C. - Some of the new Art Hills greens don't fit in (13? the par 3)
(6) PEBBLE BEACH G. LINKS - many non ocean front holes, 15 springs to mind
(7) MERION G.C. (East) - Think 10 shoehorns in awkwardly, but like a similar hole at RM
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WINGED FOOT G.C. (West) - 11th or 12th leave an awkward hanging lie
9. SAND HILLS G.C. - Hmm, 9 seems awkward dogleg right, fw bunker is a sliver
10. NATIONAL G. LINKS OF AMERICA - 1-3 too similar for my tastes
11. FISHERS ISLAND CLUB - Haven't played
12. CRYSTAL DOWNS C.C. - the 12th, modeled after Melrose with reverse slope green (may be 13, no time to look all these up)
13. SEMINOLE G.C. - Really like course. Maybe the split fw 14th (?) good concept, too short now.
14. (New) THE ALOTIAN CLUB -Haven't played
15. PACIFIC DUNES - The split fw hole doesn't truly work (9?)
16. THE COUNTRY CLUB (Clyde/Squirrel) Pretty bland all the way around.
T17. CHICAGO G.C. - Thought the fw on 9 was a little too twisty to hit.
T17. WHISTLING STRAITS (Straits) - the dogleg right fifth (18 green a close second)
19. MUIRFIELD VILLAGE G.C. - first par 3 (4th) just so so haven't seen the changes made since 2004
20. WADE HAMPTON G.C. - Haven't played
21. OAK HILL C.C. (East) - haven't seen it since Ryder Cup, the fazio holes look squeezed in
22. RIVIERA C.C. - 12
23. MEDINAH C.C. (No. 3) - sharp dogleg 11th
24. OAKLAND HILLS C.C. (South) - like TCC, holes run together for me. Seems like par 5 7th (8th) had some tee shot issues.
25. PRAIRIE DUNES C.C. - only complaint is 2 and 4 are pretty similar holes.