Since you mention Blockchain, rather than Bitcoin or any specific Blockchain application, then there's no correct or reasonable answer for your question.
All other protocols are somehow reducing decentralization to increase scalability (which is your concern, although you didn't mention it)
Or have different weakness (e.g. 51% hashrate on PoW and nothing on stake on few PoS variant)
Exactly! I'm not trying to find the "correct" answer as i believe there's only subjective truth.. and it doesn't have to be reasonable, to know something and sharing perspective is satisfying.. and i do survey from various platform so yeah let's see if PoW win or ..PoS ..(which i think is the most popular now :/)