Hard to argue many that have been listed here. 12, 13, 15 at ANGC, 18 at Pebble, 17, 18 at TOC.
I'd like to add 10 at Riviera to the conversation - so entertaining to watch each year and so dramatic to play. Not as "visually" epic as others listed, but epic in its own unique mind bending and often exhausting way.
Unfortunately haven't the chance to play there so won't opine, but surprised nobody mentioned 9 or 15 from PV.