Thanks to everyone who voted in the first-ever TreasuryComics.com poll!
While all five fantasy crossovers started off pretty much even in the beginning, eventually the dream match-up of The Justice Society and The Invaders--written by Roy Thomas and drawn by Jerry Ordway--ran away with it and never looked back.
Considering how much I love(d) Thomas' All-Star Squadron as a kid, it sort of tickles me that this idea won so easily. I would have killed to see a book like this, especially in a classic, giant treasury-sized edition.
This whole silly idea got started between me and a friend of mine on Facebook, and we came up with at least another dozen ideas for DC/Marvel crossovers. So who knows? Maybe I'll go back and find some more, do another poll, and then we'll have some sort of bracket thing where both winners face off.