If widespread crypto adoption ever occurs, ETH might well be the most popular crypto asset.
There are lots of hurdles ahead; mainly the ASICS war and the shift for PoW to PoS, but ETH has the potential to become a crypto monster like BTC itself.
Will it overtake it? Nobody knows for sure! Four years ago, who could have guessed things would be as they are now?
I believe BTC will keep the dominance for the foreseeable future but in a couple years, who knows?
I agree, I think ETH has potential to be THE coin.
It is definitely the most useful at this point.