bitcoin is techically more superior then ETH ,yes but the use cases are bigger for etheruem now!
real utility for ETH ARE BIGGER.
ETH: defi, icos, dapps, stable coins.
also the very good liquitity !!
BITCOIN ?
yes you can buy thigns with btc but so you can do with ETH.
Both represent about 75 percent of the market even now and when they will go parabolic they will be over 90 percent of the market so both of them are huge coins and without them market will seem powerless, i support both these power coins and im really looking forward to their new highs in 2021.