ARK for the following reasons
3-4 months old
Already top 50 coin
Same coin supply as ETH, yet a loss less inflation on the coin supply, AND it costs a fraction of it.
Incredible wallet, never seen such a smooth clean wallet before, and it's secure.. Very secure. You can't even make screenshots of it, so it's nice against keyloggers and hackers in general.
Smart bridges being built to bridge between all the block chains, which talks for itself.
One of the developers has coded satelites for NASA, which is AWESOME.
STRONG community, and while we are seeing a BLOOD BATH in crypto, this coin remains stable to say the least.
DPOS - Delegate Proof Of Stake. Which means you can vote for a pool who you support, and in return get daily, or weekly stakes on your coins. This is great because you don't have to have your computer running 24/7 to stake.
Do your own research, however I'm betting most of my money on this one