To see, as one of the other posters mentioned, how good Langford and Burley actually are, I would love to bring them back in my Delorian.
(I watched Greys video post on Burley- Examining greatness) or something like that, and to see it in action live would be amazing. Same with Langford as all I have about him are books and articles.


Other than that, Duran, Hagler, hell the whole fab four, Ali, young Tyson, maybe even Butterbean for kicks. Might stir up a couple of weight classes.