Ian,
On a few recent threads, there has been mention of Stanley Thompson’s work in Cleveland, including at the lessor known and respected Big Met, which is often cited as the busiest course in Ohio.
#14 at Big Met may meet your definition of a “world class hole on a mediocre course”. According to local legend this 440 yard dogleg Par 4 had the admiration of Arnold Palmer in his young days. Given the technology of his era, the hole required a demanding drive just to get a clear shot at the green. Then, the green itself, especially the front, was very hard to hit and hold with its inverted saucer shaping.
That said, technology has probably changed things, at least for elite players hitting 300 yard drives. For the masses, however, the sharp dogleg and length required to have a clear shot at the green, is still too much, effectively making the hole a short Par 5.
Tim