In addressing hype potential I think that Doge has way more long term upside due to the fact that:
a) It came earlier compared to SHIB
b) It has a much stronger brand image compared to SHIB and
c) It actually has some use case since it has its own chain, rather than being a mere "token".
Exactly. Dogecoin has all the chances of winning, simply because of its established place on the market over the years. It has its own blockchain network and a huge community backing it every step of the way. As you said before, SHIBA is only a mere token built on an existing blockchain network. Without its own chain, I fail to see how SHIBA will succeed in the long run. It's all fueled by hype rather than real use cases in the mainstream world. Dogecoin is also fueled by hype, but it has greater chances of survival because of the reasons mentioned earlier. I'd focus more on serious cryptocurrencies like Bitcoin and Ethereum as the risk of loss is small. As long as you don't invest more than what you're willing to lose, you'll have nothing to worry about. Just my thoughts