Pebble Beach has been the No. 1 course ever since we introduced the 100 Greatest Public in 2003. It's not just the greatest meeting of land and sea in American golf, but the most extensive one, too, with nine holes perched immediately above the crashing Pacific surf -- the fourth through the 10th plus the 17th and 18th. Pebble's sixth through eighth are golf's real Amen Corner, with a few Hail Marys thrown in over a ocean cove on eight from atop a 75-foot-high bluff. Pebble will host another U.S. Amateur in 2018, and its sixth U.S. Open in 2019…