We may never know if Blomkamp's film would've been good or not, but it surely would've been better than what we got with the "prequels". Prometheus/Covenant are bad not just because of the plot holes, ruining of the lore, bland characters, unrealistic character actions, etc, but simply because the very IDEA of a prequel to the first Alien film is a bad idea. Alien should've never had a prequel. Not everything is supposed to have a deep mythology/backstory/cinematic-universe, and in fact, Alien was designed not to. The first Alien was a small/self-contained story, and Prometheus tried to be this grand epic philosophical movie answering the question of the meaning of life etc, something that was never a theme in the Alien movies, all while being ASHAMED to be an Alien prequel. Ridley clearly wanted to make a non-Alien movie with Prometheus but I guess figured tacking it on to Alien would sell more tickets or something. I genuinely wonder how many "casual" viewers saw Prometheus in theaters and didn't even know it was supposed to be a quasi-prequel. The alien popping out of the stupid blue guy's chest at the end probably just confused them lol.
No one should actually want to know/see the backstory of the f**king Alien/Space Jockey. Because then it takes away the mystery and turns it into just another stupid cheesy movie monster, something the Alien was always above imo. Aside from all the sexual metaphors, the Alien is also just supposed to represent the unknowable cosmic horrors that could await humanity in the black uncharted vastness of space. Giving it a backstory (especially one as stupid and bad as the one given) just defeats the whole purpose. At least the AvP movies were self aware enough to kind of know that they were corny disposable non-canon popcorn flicks. But the "prequels" want to be taken super seriously and god its just so so bad smh.
I want an Alien movie that isn't a spin-off or prequel ffs. There's a literal 200 year gap between Alien 3 and Resurrection, do something there. Or just stop making them at this point. We've suffered enough.