What makes the most sense for WGT is to first focus on getting a course that represents each of the major groups of golf courses. Meaning a parkland course, a scottish/irish links course, a lowland course, a heathland course, a mountain course, a desert course, a seaside (not links) course, a Florida style course (not sure what to call it but it deserves a group) a meadowland course, and an American style 'links course.' Here are the course that should be added based on my criteria. With scottish links, parkland, and lowland course excluded because we already have Bethpage (parkland), Kiawah (lowland), and soon St. Andrews (scottish links). This would give the site great variety and I think would really raise interest and popularity.
Desert Course: TPC Scottsdale
Mountain Course: Banff Springs
Meadowland Course: Shinnecock Hills
American Links Course: Bandon Dunes
Heathland Course: Sunningdale
Seaside Course: Pebble Beach
Florida Course: Seminole