Jesus Christ. Talk about a decision. On the one hand nationalistic pride has my favourite British wrestler ever. On the other hand you have Mil Mascaras, who is one of the top luchadors of all time. My heart is saying go with Billington, but my head is firmly saying Mascaras.
The Dynamite kid has been called the best pound for pound wrestler of all time by Bret Hart, which is high praise indeed. His feud with Tiger Mask was nothing short of awesome. However, his most notable successes were in tag team wrestling. Billington was his own victim in the end, and a life of excessive drug taking has put such a strain on his body that he is now an amputee in a wheelchair.
Mil Mascaras has beaten all sorts of people throughout his career, and unlike almost every single other luchador, he has had notable success on American soil - he beat the WWWF Champion Billy Graham in Madison Square Garden, with the referee stopping the match because Mascaras had cut him open on the ring rope. He was the first man to be allowed to wrestle masked in MSG, and he beat the WWWF champion without cheating in the heartland of the promotion.
He also beat NWA champion Harley Race by disqualification and he is also one of few people to have ever lost to El Canek, who despite not being very good, is a consistant winner an one of IC25's picks of the tournament. To those who only started watching wrestling recently, note that he has squashed Catus Jack and beat Chris Jericho, both of whom said he was a horrendus no-seller. But winners don't need to be sellers, and Mascaras would win here I think.