My favorite project is Qtum

Market capitalization: $5 bln

Qtum is the first UTXO-based smart contract system with a proof-of-stake consensus model. The platform use Account Attraction Layer to combine Bitcoin Core and Ethereum Virtual Machine. Proof-of-stake model reduces the computational difficulty in the network and increases scaling possibilities. On Dec. 28, 2017, Qtum and Baofeng, the largest video hosting in China, announcedthe partnership to transform the music and movie industry work.

Patrick Dai, Neil Mahi, the former Chief Blockchain Architect at BitSE, and Jordan Earls launched Qtum in March 2017.