The comparison chart is a good start at: https://bitcointalksearch.org/topic/btc2-bitcoin-2-btc-fork-11-pos-anonymous-instant-tx-2871452
In addition to what's already in the comparison chart, here's a few more notable differences:
- Bitcoin blockchain requires over 100 times more hard drive space than the Bitcoin 2 blockchain.
- Address format is the same, except BTC2 doesn't support segwit/bech32 addresses.
- Bitcoin 2 so far went with on-chain scaling rather than Lightning Network.
- A lot of the core code in Bitcoin 2 is from Bitcoin. So many things that haven't been mentioned in the comparison chart image are the same or very similar.