While Polkadot got fair share of attention from Aragon community, there is new promising player in the town – AVAlanche
Check out their presentation on DEVCON 5
They aim for EVM support. Actually they aim to transfer Ethereum state to their network via “spoon” - friendly fork - just because they can.
Looks like Avachain has more and more options every day, despite the choice of sticking to EVM.