I think the only cryptocurrency worth HODL is Bitcoin, and other altcoins are more suitable for short-term trading, because the altcoin is very easy to collapse!
Well ETH was once counted for long term investment when the market was green and there was a rising trend in the prices. Bitcoin now is exactly the same it was then. It has the same status regardless of depreciation in value. And even now, ETH is preferred for the future because it is believed that in the future, ETH will recover as the market takes a warm twist because the status of ETH is down just because of the down price.