I think you better hold both, because it looks like bitcoin will stay better than ethereum, so before you regret it is better 60% for bitcoin and 40% for ethereum.
Yeah, holding will be good and it's working but it is best if you trade it and have profits everyday. I may myself doing it cause I realize that it won't grow day by day if I just keep on holding. Do the risk is high but it won't give me worries as I believe and trust my self of what I am doing.