I think Polkadot has the capacity to be a great cryptoworld, and I am beyond any doubt there must be a great development control ahead to it but beating Eth is fair another story and it may not happen that quick and effortlessly. The thing is that with Ethereum it has as of now demonstrated its capacity and in spite of the fact that it is never idealize and has still huge room for change, its client base is as of now built up.