MMA is the future and the next step in the evolution of personal combat. Hoyce Gracie, and Gracie Grappling changed the sport and the fighting world as we know it. I don't think there is much argument that mixed martial arts is taking over the fighting world by storm. Though I still love boxing, at least the classics, but I find it hard to watch anymore because it seems to rigid in it's rules compared to MMA.
As far as wrestling goes, well that's just really a soap opera for grown men isn't it?