I like both, but I've always leaned toward science fiction myself. I have an easier time finding deep and thought-provoking stories in the science fiction genre, and I tend to prefer its more emphasis on exploring what its possibilities mean and using them to examine ourselves.
That's a good callout. And as the maker of this very spur-of-the-moment binary, I'd agree that speculative fiction built around how people would react to $shiny_new_tech_or_magic falls under the broad category of allegory. I suppose I should rename that category something along the lines of "lens we view the real world through" instead.