My guess is eth. BTC is taking a big hit as we speak...
With this current market price performance in which all coins are in difficult then therefore i could say still Bitcoin is the top ranked among the other Altcoins or a king. Altcoins will now face its difficult challenges of banning the crypro advertisements on June which means if the banning will be fully effect then for sure the investments for the altcoins will be affected too. Unlike Bitcoin in which it doesn't need to be promoted and advertise.