Dream Vs match.
You’d think that I would be able to answer this one easily, but nothing is really springing to mind. I mean, I’ve been reading comics for over 30 years and I’ve seen many vs matches (hell, there’s a whole subgenre of superhero comics where the heroes battle each other over some misunderstanding) from Superman and Batman in The Dark Knight Returns to the JLA vs the Avengers in JLA/Avengers (and by extension DC vs Marvel). So, in the absence of a serious answer, I give you my funny dream vs match: Tom Brevoort vs Dan Didio! (My money’s on Didio.)
I’d pay good money to see that fight! And you are right. Dan the Dismissive for the win.