Ethereum is entire programing platform leverage from the block chain and implementing smart contracts.
It have its own programing language, own cryptocurency (Ether) and a ton of top projects already build on top of it.

Just count the projects that are build on Ethereum that are currently in the top 100 https://coinmarketcap.com/.

And what is ETC?
Just a cryptocurency backed by nothing but a pump and dumb scheme.

Let me tell you a story.
One day the great Ethereum eat a rotten food (TheDAO). His stomach got ill and it took a dump.
Well this is Ethereum classic.

So i am asking you:
What makes you better than your shi..?

Don't sell your ETH people!