I don't know, what I saw in there (particularly with the haunted house) was a far broader POTENTIAL RANGE of outputs. I get that they were cheesier outputs, but it seems to me that those outputs were just as capable of coming from the other 'AIs'… if you let them.
It's like each of these has a hidden giant pile of negative prompts, or additional positive prompts, that greatly narrow down the range of output. There are contexts where the Dall-E 'spoopy haunted house ooooo!' imagery would be exactly right… like 'show me halloweeny stock art'.
That haunted house prompt didn't explicitly SAY 'oh, also make it look like it's a photo out of a movie and make it look fantastic'. But something in the more 'competitive' AIs knew to go for that. So if you wanted to go for the spoopy cheesey 'collective unconscious' imagery, would you have to force the more sophisticated AIs to go against their hidden requirements?
Mind you if you added 'halloween postcard from out of a cheesey old store' and suddenly the other ones were doing that vibe six times better, I'd immediately concede they were in fact that much smarter. I've seen that before, too, in different Stable Diffusion models. I'm just saying that the consistency of output in the 'smarter' ones can also represent a thumb on the scale.
They've got to compete by looking sophisticated, so the 'Greg Rutkowskification' effect will kick in: you show off by picking a flashy style to depict rather than going for something equally valid, but less commercial.