I think the best altcoin in investment is bitcoin and ethereum. Because in my opinion bitcoin and ethereum are coins that have a lot of enthusiasts, which is likely the longer the price will go up.
both are good as investments but actually there are many other preferences as our long-term investments, as we know there are cheap token tokens in the ethereum platform
The fact that there are many projects on the ethereum platform does not make it more interesting for investments than Bitcoin. Bitcoin is digital gold and people will always consider it the best investment because it is decentralized.