@Taweret The Bat People is horribly horrible. I was going to vote for it on the basis of it being universally panned. Critters is derivative (or not) of Gremlins. Bog is bad. Yeti is bad. Slithis is terrible. First Men in the Moon has actual bad good stuff, not bad bad stuff. It's bad, but in a less-bad, almost better, way. Classic stop-action photography by one of the greats, even.
Slithis is so bad, all of the others had links to Wikipedia. Too embarrassing for Wikipedia, I presume.
It will probably win.
So, I decided to just vote for the one with bad good stuff.
This concludes my TED talk.