In lets say the next Bear Market within a year or two.
- Polkadot
- Binance Chain
- Binance Smart Chain
- Heco
- Solana
- Fantom
- Cardano
- Synthetics
- Avalanche
Any other Popular ones that I missed out on?
What's up with Binance Chain & Binance Smart Chain

Or will Eth 2.0 kill all above in the list? But then again Eth 2.0 is like Coca Cola Brand in the Crypto market so there's always a Pepsi like Brand competitor to Eth 2.0 right and if so which Blockchain do you think it will be?
Which blockchain is the Fastest, Cheapest, Most Secure

? Usually this determines the winner right?
You missed NEAR protocol and it's EVM compatible contract Aurora. Aurora scales Ethereum so they competitors because unlike sidechains like Polygon, Aurora uses Ethereum natively to pay gas fees. NEAR has it's own AMM with farming, Ref Finance, and Sushiswap will deploy on Aurora.