I'm very shocked that Davey Boy is receiving so little love here because, when it comes to wrestling in the US, he has a very similar record to Mil in that both challenged for top honors but always came up short. And anybody who claims that Mil would offer him anything he hadn't seen before... are you joking? He teamed with the Dynamite Kid!
Not only this, but he faced off against Dynamite Kid as well. The essential problem with this, however, is that in DK's time, he was a rare breed in the states where he wrestled, where Mil was considered to be more of a heavyweight....in Mexico.
As far as being draws - yes, Mil was a massive crossover star.
And here's where the problem lies for Davey Boy. In the end, I voted for him. I could see him making a high-flying moment getting caught up in the moment, such as when he eliminated himself from the Royal Rumble and costing himself the match. But Mil has seen more of a diverse opponent then Davey Boy both due to longevity and where he's wrestled. Neither man has, in terms of championships, many singles to their credit. I'd actually give the edge to Davey, and in far less time too as a professional wrestler. I was reminded of their match from '96 with the double pin German in the Cena/Punk match, as he and HBK had a similar finish for the WWF Title. No Davey Boy never won the big one, but he headlined multiple PPV's in the biggest company in the world, and wrestled the champion to a draw in the main event.
Mascaras has drawn alot of controversy both for being a mark for himself and refusing to sell moves. Chris Jericho wrote extensively about it, and JBL's talked about it. Perhaps a part of this is simply the general distaste he's left in my mouth both from what other wrestlers have said about him, and what he himself has said about working with "inferior" talent.
Anyways, with the location of the match, it favors Mascaras being that it's not far North of Mexico. However Mascaras was a showman first, winner second, and that would be his downfall here. In possibly an upset, I see Miscaras, ever the showman, making a crucial mistake, Bulldog catching him, and finishing him with a powerslam. He won't advance here, but he gets my vote.