Best hole = #6 at The Creek; Pure risk/reward strategy off the tee with an awesome Punchbowl/Reverse Redan green complex. Also one of my favorites.
Cannot single out only 1 favorite. Cannot even get to 1 for many of 8 different categories (e.g. long par 4, short par 3, etc.)
#8 at Pebble is certainly right up there.
Will give the nod to #8 at Pine Valley for both best AND favorite short par 4.
All candidates are oft-mentioned on this DG from Merion, PV, Shinnecock, NGLA, Dornoch, Pebble, Cypress, etc. (except Sand Hills - haven't played yet.
Now back to my Christmas Day grog.