A few other anecdotal points to raise about great courses which have produced champions of questionable greatness - sticking to the US Open and PGA, because the quality of British Open courses is more uniformly high and their sample sizes of winners generally larger and more encompassing:
--My favorite US Open course is and probably always will be Shinnecock. The two players to win at Shinnecock (other than James Foulis in 1896) are Ray Floyd and Corey Pavin. Both players with much to recommend them, but Pavin will ultimately fall far short of "greatness", and Floyd's position in history is debatable - I'm impressed by his record, but it certainly doesn't reach the Nicklauses of the world or even the Watsons.
--Merion's four US Open winners include two of the greats of the game - Hogan and Trevino - but they also include Olin Dutra and David Graham. (Bonus points may be awarded for Bobby Jones's two US Amateurs here.)
--I can't really comment upon the greatness of Riviera as a golf course, but its three major winners are Hogan, Hal Sutton and Steve Elkington.
--Oakmont has a pretty solid roster of major winners, including Sarazen, Shead, Hogan and Nicklaus. Tommy Armour and Johnny Miller's places in history may be debated, and Ernie Els's is yet to be determined, but what about Larry Nelson, John Mahaffey or Sam Parks Jr.?
At the other extreme, what about one-off or two-off postwar venues, greatness of design to be debated, which produced great champions?
--Bellerive: Gary Player (1965 US Open) and Nick Price (1994 PGA)
--1974 PGA at Tanglewood (NC): top three of Trevino, Nicklaus, and a 62-year-old Sam Snead (! - one of my all-time "how did THAT happen?" moments)
--1963 PGA at Dallas AC: Nicklaus
--1948 PGA at Norwood Hills (St. Louis): Hogan
--1946 PGA at Portland CC (Oregon): Hogan
In the middle of these two extremes is Cherry Hills - I can almost hear the USGA talking heads after Palmer's thrilling 1960 US Open win saying, "Maybe we should hold another one of these here," and then after Andy North's 1978 victory saying, "Then again, maybe not..." (Vic Ghezzi also beat out Byron Nelson in a 38-hole final in the 1938 PGA.)
I recognize fully that these examples were chosen to buttress my case, and that equally good examples could be produced to demonstrate the validity of the Conventional Wisdom. (Minor point: we keep forgetting, as I have, that Lanny Wadkins won the 1977 PGA at Pebble Beach!) But I think there are enough exceptions as to cast significant doubt upon the CW.
Thus endeth my crusade. (Smiley face edited out by Mr. Kelly.)
Cheers,
Darren