Of the two of them, I think I definitely prefer the first one, because it's drawn in a very 'Little Nemo'ish style - the artist obviously had Windsor McCay in mind when he drew it. The second one, on the other hand, is just your average nightmare dream sequence up until the last panel - if it weren't for Cap making the reference to rarebit, I don't think I would have gotten the reference at all. (Plus, the first one's much more kooky and surreal.)