Knersie is 100% right.
My 2c ... both look like nice, well cared for bulls. The older boy is I think the better type, however both are a bit underconditioned for show (they are in great working condition though, just need a bit more oomph for the show ring) and I think that the old boy might take longer to get the condition on. If I had them I would enter both, put both on feed, and see how they both look right before the show, and take the one that is looking better. Actually if I had them I would enter both and find a helper to show the other one!