The blockchain and cryptocurrency industry is an industry that is constantly changing and evolving. So it’s hard to give you a binary answer inmy opinion. I honestly love both the projects.
However when I look at it from a larger perspective, I realize that the industry is rapidly changing and the top project maybe something we least expect. I see a lot of development happening in the Web3 ecosystem with respect to Polkadot. I see new projects like Concordium which are exploring new paradigms like Faas( Finality as a Service ) and are backed by years of Academic Research. DeFi is changing the way we know Finance.
If there is one thing we can learn from the industry, its that change is the only constant and BTC is King. It has always been.
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.
I think BTC is a brand and is known to be the ambassador of blockchain tech and innovative digital economy so it will remain at the top always while Eth is a whole lot ecosystem of applications, softwares, automation, coding and contracts that will eventually bring adoption. So both are different and unique and both can survive together and take the tech forward.