I think that the Master's has something that none fo the others has: the same great course to play on every year. The familiarity of the course and its challenges engages the interest of many fans in a way that the ever-changing venues of the other tournaments don't. When the British is played on the Old Course at St. Andrew's, there is a similar interest generated that you don't see at the other locations. I love them all, but the Master's is my favorite because of Amen Corner, and No. 15, 16, and 18.