ETC is just a scam coin. Hopefully it will get some other development, but technologicaly it is very old, because there is no dev team behind it. It can grow slightly ,because people are confused and when they see name - Ethereum Classic they can think that it is exactly coin what they saw on news. But in fact it is speculatory parasite coin with no further development behind it.

ETH Ξthereum is real. It has development ,strategy and road map. ETH is dapps (decentralited applications) ETH is Ethereum Alliance with more than 100+ world financial (JP Morgan,Deutsche Bank,SberBank) and industrial (intel,Microsoft,Toyota,Samsung) corporations behind it.