It would be interesting if this list were altered with the requirement that a course be "rated" a minimum number of times. Say 3 or 4 mentions before it can make the list. This may help to keep out some wierd courses from scoring so highly as well as make the list more representative in terms of the world. As it is now, it strikes me as very, very American heavy - probably eliminating several other courses from around the world making the list.
Ciao