SOURCE: FORBES The U.S. Open Vs. Wimbledon Aude Lagorce, 07.12.04, 6:00 AM ET NEW YORK - Few sporting events can pull in crowds and draw sponsors like a Grand Slam tournament. Of the four landmark competitions that make up the height of the tennis season--the Australian Open, the French Open, Britain's Wimbledon, and the U.S. Open--Wimbledon and the U.S. Open carry the most prestige. The two tournaments, which rank among the largest yearly international sporting events, now a...