Aquaman and Sub-Mariner - Alter Ego #16

This titanic team-up of comicdom's premiere Kings of the Seven Seas was the flip cover to Alter Ego #16, drawn by the equally impressive team of Ramona Fradon and Marie Severin!

While this cover is played for laughs, it makes me think how much I would have loved (heck, still would love) to see an actual Aquaman/Namor team-up one-shot or mini-series. In the 90s and early 2000s DC and Marvel were teaming up their characters left and right, but their respective champions of the seas never got their shot, other than their brief face-off in DC vs. Marvel.