For no reason, I started wondering if Spock, in "The Enterprise Incident" really might go the other way? He's half-human and thus more prone to human foibles and would more likely be appreciated... or why he wouldn't try to conquer Vulcan, since he once opined their world had not been conquered as far back as their history claimed (paraphrasing from an episode whose title eludes me...) Or Khan (Ricardo Montalban) succeeds in taking over the ship in "Space Seed" and figures out how he and his pals can run the ship... and how far they go before the Federation shows up. Eden turned out to be free of snakes, the food was edible, the grass wasn't acid and nobody wanted to smoke it either way, and Apollo was there playing with his big flute and warmly telling them to enjoy life. Sheesh, who really wouldn't want to worship him? Even visiting Romulans would beam on down and realize there's no subterfuge. What other stories might be more fun, in some warped way, if they had a few nominal tweaks applied?