Question Aland vs Stockholm’s Archipelago: Which to Choose?

Hello, I have 3 days between being in Stockholm and needing to get to Helsinki. I'm torn between exploring the Aland Islands or Stockholm’s archipelago. Both seem stunning, but I’m not sure which one offers a better experience for a short trip. I’m looking for beautiful landscapes, maybe some light hiking, and a chance to relax. Has anyone visited both? Which would you recommend for a 3-day trip? Also, any tips on getting around or must-see spots in either place would be amazing.