Royal St. George's is the clear choice for my favorite new course played in 2018. Even among several great courses I played while in England (Swinley Forest, Sunningdale Old & New, Royal Cinque Ports, Walton Heath Old), Sandwich was outstanding. I was fortunate to go around twice on a crisp, clear, and breezy April day. Being guided by a knowledgeable local GCA'er added significantly to my appreciation of the course, which may well be the best links course I have played. Of course, we enjoyed the Pimms, claret, and carvery lunch as much (or more?) as the golf, making for an incredible day all around.
Stateside, I played a handful of really great courses for the first time. My favorite in the group was Mountain Lake, a course I wanted to just go around and around, but sadly got in only 18 holes. Piping Rock was truly excellent, and perhaps technically better, but something about Mountain Lake stuck with me for a long time after my visit.