I've mentioned this before, buried in this thread, but I don't think anyone can compete with the WWE in the present day, and it has nothing to do with the product or how much money you put into it. The WWE has been building its foundation for 50 years, and its the biggest mainstream product of its kind. Sure, you have other promotions, similar to the WWE in other countries (NJPW in Japan/AAA, in Mexico), but they aren't globally as big as the WWE.
Say what you want about the WWE, but they're pretty much the "McDonalds" of the wrestling business.