No i think Bitcoin is the best than Ethereum.Invest in BTC i think always best choice.Because The supply of BTC is limited and it's use area not only in crypto world.And now UNICEF also accept BTC for donation. BTC never go down day by day it's area will be increased.
I agree that BTC is the best cryptocurrency now and maybe also in the future. But if we consider the profit, I think ETH will be bigger than the BTC. It's not too hard for ETH to reach $500 while I don't think BTC can easily to reach $12k. So I think convert BTC to ETH is also a good option now.