It's worth comparing this with the recent Tolkien vs. Martin post by Thomas, if you're interested in the format. (Language warning.) They both feature an English legend against what is presented as a blowhard American. The effect, however, is quite different.
I'm curious as to why, given the political leanings of ERB, they treated the Spanish American War as kind-of glorious, and outright ignored Churchill's contributions to Britain's colonial wars.
I think they think that Churchill won this one as convincingly as they set up Tolkien to win over Martin (which of course he should have done, were the thing real). I'm pretty sure that's not true. The Bull Moose looks to me like he came out well on top, given the way that Churchill presents his argument.