Very interesting question, in my opinion token which run on other chain (e.g. erc20) and has good purpose is better than altcoin without real purpose.
Yes we all know that a good AltTolen is better than a shit Altcoin but that isn't the question here, I'm asking based on both cryptocurrency having the same privileges that's they're both good cryptocurrency with potential but considering between investing in either Altcoin or Alt-token as the case maybe, which one will you prefer and can also recommend to others.