None of them.. They're both high risk high reward coins imo.

although the SHIB is still quite new and the price is where doge were most of its time - i'd say that you might see some spikes in the future on SHIB if it gets listed on other platforms than binance, and if the arbitrum will have any effect on buyers - when thats said, i also predict that you'll see some huge dips because 'its just a meme coin..

If you chose to invest in any of them, only invest money you can afford to lose