I just want to say that anyone who picks pterodactyl, ichthyosaurus, or mosasaurus as their favourite dinosaurs is wrong because none of those are dinosaurs.
Having said that, I like triceratops, which isn't on the list for some reason. I guess I'll pick styracosaurus since it's similar.
That was news to me. The wiki for Torosaurus is a deep rabbit hole, and since fossilization is rare and we have to go with what little we can find, this will probably be a long debate either way.
With that being said, whatever the name, three horn dino is best dino! And weird that the meme wouldn't have one on there, since it has always been a well known dinosaur in movies and toys.
I know it's been debated back and forth with a lot of the ceratopsian dinosaurs. Torosaurus was the one they think/thought is the adult version of a triceratops. I'm not sure where the consensus stands now though.