It mostly just depends on how you want your desktop to look. They have screenshots of each on their website. Since it sounds like you have a new laptop, power won’t be an issue for you. (If you were trying to run Mint on something with the power of a potato, a lighter DE would be a good idea.) Personally I love how Cinnamon looks and feels. It’s pretty simple, but also modern and customizable.

I’m switching to back to Linux for the first time in 8 years. Grew up on Mandrivia for no reason other than that’s what my dad liked, got a MacBook for school, and now that my OS isn’t getting updates I want something fresh and free! Thinking of getting my toes wet with Linux Mint :)