Ravencoin right now doesn't have so much use, but it's a coin that can go 10x from here or even more.

ETC is probably the best coin right now if we compare with another coins, like use case, devs, time in the market, support, price and marketcap.
I don't know how much hashrate ETC can absorb, but there's only a few days left to find out. I hope RVN, ETC, ERGO and another coins stay strong and I hope for new POW coins.
With more support, maybe RVN can attract more attention and have some good functionalities in a near future.