in this case I think ethereum's has bigger room to grow and develop instead of bitcoin.
I personally believe one day Ethereum can beat Bitcoin in "Capitalization".
Maybe 5 years or 10 years from now.
We will never know.
But I don't think that time will come and it's more likely that Ethereum will be the project that's gonna be gone out of its place if its problem will continue to exist.
That's the high transaction fee and thought of many will be finally solved with all of those upgrades that have been done in the past. However, until now sometimes it seems so high, sometimes not.