My advice would be to invest in both BTC and Ethereum because they are both profitable. BTC seems more profitable in long term investment and Ethereum is also profitable too.
Yes, but do not forget, right now BTC and ETH are going up and most of altcoins are sitting back with a huge discount from ico and pre-ico price and eventually good ones will raise a lot!
actually, I judge the potential of both coins is the same, depending on the terms of use. but, in this case, I might be inclined to choose bitcoin, because the current development is quite good. even now the price has reached $ 5300, and ETH is still stable at $ 170-180.