Three utterly unoriginal British seaside suggestions, and an inland one
The 8th at Brancaster, with a brilliant 'bite-off-as-much-as-you-dare' drive, a not dissimilar second, and (usually) a beguiling pitch in from the left. Famously described by both Darwin and the authors of The Confidential Guide.
The 9th at Westward Ho!, where Fowler's cunning pot bunker about 100 yards out absolutely determines the way to play the hole. See Doak and Morrissett on this (I recall that this hole was in Ran's 'dream eighteen').
Both of these are, of course, a drive and an 8-iron for most touring professionals nowadays, unless the wind is strongly in the opposing direction, but for most handicap golfers both holes provide interest and challenge for all three shots, as well as fun putting, which seems to me the test of a great par five.
The 14th on TOC, where again all three shots (and Hell Bunker the green) provide huge interest, and of course off the black tee even the longest hitters are challenged to know quite what to do. There are plenty of alternative lines in, which again makes the golfer think in ways s/he doesn't necessarily want to.
The inland British three-shotter which was perhaps the most respected at one time was the eleventh at Worplesdon, a double-dogleg about which (e.g.) Tom Simpson wrote with reverence as, again challenging the player both to think, and to hit properly, with every shot.