Ofcourse Ethereum is very innovative, it is infact one of the most innovative projects out there, but BTC will continue to dominate unless Ethereum brings something so huge that it will lead mass adoption and will be seen a better store of value than BTC. Ethereum was never intended to be a store of value.
My vote is still on Bitcoin the dominance is still there and I don't see it changing in the next two years Ethereum is still a long way to go but they are still developing and evolving with new features every year.
Dominance:
BTC 54.8%
ETH 13.0%
USDT 3.35%
There are a lot of works to be done adoption is still ongoing and for people to get into the other coins, they must go through Bitcoin first, it's the one that started it all and the basic of Cryptocurrency is Bitcoin.