ETH is better than ETC. ETC just a forked coin. With the latest development of ethereum. Seems ETC to be the un-potential coin in the future. But what makes you think if ETC is a good coin? I don't see any reason for that.
With a lack of development and ETH is a better choice for you. Too many the big companies have joined on ethereum platform and it gives a good clue for us about the future of ethereum.