I think that Ethereum is still the only altcoin that can really have a competition with Bitcoin in longterm because blockchain structure is solid and tested , community is big and many people still use Eth and tokens based on eth blockchain without problems.
I never considered ethereum as a rival for bitcoin. they are different, their markets are equally strong, but not to compete. I agree if ethereum is for long-term investments where the ethereum market is now getting stronger with prices continuing to stabilize. we just have to wait for the bull and etheruem to fly.