My, aren't you saucy today. Well, think what you wish. The block size limit was a hack to protect the fledgling network that was no longer necessary, so I never would argue to keep it.
Ultimately, most of the big decisions from the original bitcoin were good. You still haven't explained how a different POW would prevent the same problems. I suspect you cannot.
What same problems? it would instantly make the network a lot stronger and better proposition for investors/users. It would enable a positive feedback loop imo.