Bitcoin 2 is a scalable Bitcoin fork that supports private transactions through the Zerocoin protocol and nearly instantly verified payments by Masternodes. Bitcoin 2 uses a Proof of Stake system that allows anyone even running a basic laptop to get block rewards while contributing to running the blockchain.
UNO is a fair launch, low inflation, high-hash rate, rare issue cryptocurrency since 2013. Sha256, merge mined with Btc, high hash, 3 minute blocks.