Many publications rank Pine Valley in NJ as the top course in the world, in fact Golf Digest had it as so for many a year. From what I've seen, Pine Valley, Pebble Beach, Augusta, and Muirfield are usually amongst the top 5 or so, and courses like St Andrew's, Shinnecock Hills, Pinehurst No 2, Royal Melbourne, and Cypress Point are often listed amongst the best as well.