and i did mention decentralized system..
You are in a bitcoin forum.
Ofc most veteran users here will tell you that POW is the best, for numerous reasons. For now, in the opnion of most people here, it is the only way to secure the network while keeping it decentralized.
All other protocols are somehow reducing decentralization to increase scalability (which is your concern, although you didn't mention it)
The trade-off decentralization x scalability is not worth now.
Yes lol i questioned this everywhere... like a mini survey! :p from those numerous reason- what do you think is strongest reason compared to the other? just one.. from your sights..
here i found interesting - why pow is the best mechanism and why it isn't.
That's just an example-from pow.. i expect to hear more though yeah this is bitcoin forum lol