When an alien invasion wipes out all of Earth’s superheroes, the planet’s most hated and feared Supervillain must make a stand, or be the invaders’ next target

A suggested tweak:

When invading aliens wipe out all of Earth's superheroes, the planet's most hated and feared Supervillain must take a stand for humanity, or be the aliens? next target.

I think the word "choose" is superfluous; that he will need to choose is implicit.

"Hated and feared" or "hated" instead of "feared". In the story, people could fear him for the trouble he makes, but the audience could admire his style and cunning. (That does happen.) Whereas if he's hated, if nobody anywhere likes him for any reason -- he's a universally despised character by both those in the story and those in the audience -- I suggest this would establish a more dramatic baseline for the arc of character transformation.

[But the subtext of my suggestion could be that I'm over psychoanalyzing -- again -- the nature of the relationship between humanity the protagonist.]

Thanks. As you can probably see took a little bit to nail a short, succinct logline that covered the inciting incident, protagonist and illustrated the stakes. With Dpg's help, and now yours, I haved changed it to all, I think I have finally got there..

Have not read the comments - just the logline.

Not bad! One small change. "most of" --> "all". It's him/her against oblivion. No cavalry to come charging in.

Could not help seeing a few words scrolling up and down. Aboslutely! Your logline told me your (anti)hero has some very hard choices to make.

Good luck moving it forward.

Lx