It seems like MMA and Pro-Wrestling has the most cross-overs than any other two forms of live entertainment. *The original cross-over was Ken Shamrock coming over to the WWE in the mid-90s. *Brock Lesnar becoming a huge WWE star, coming to UFC, and back to WWE. *The numerous appearances of Pride stars in Japan's pro-wrestling circuit. *Tank Abbot in WCW. *Ronda Rousey. *And recently PVZ and Masvidal making appearances in AEW, and apparently JDS is actually going to wrestle. The best of all of these is obviously Lesnar. The worst is obviously Tank Abbot in WCW. But I'm cool with about everything in moderation, but I'm starting to think that Masvidal, PVZ, and JDS all making appearances on AEW shows may be too much. Your thoughts?