I can't judge Polkadot as it hasn't launched completely yet. Parachains' auctions are only going to start in November, but I am sure that it will be a huge hype as there are many people who are interested in investing in it.

If comparing BSC and Polkadot, I think that Polkadot bypasses BSC in many respects. First of all, Polkadot is decentralised. Secondly, I suppose that Polkadot will be faster as it can run several transactions at the same time using several payment channels.