Digital.

I always carry my phone so if I wish to read even when I don’t have my kindle, I can use phone at a pinch.

Vastly prefer the experience of reading on a kindle too. No issues with propping a thick book open, built in reading light, light enough to hold over head, can be read on the side easily and page changes are a dawdle (move a finger).

Also, I can’t get myself to throw books away, yet I almost never read them again (aside from a few classics) - my wife and I try our very best to avoid the house cluttering up, so not having a bunch of paper books moves us in the right direction.

Also, I can sync progress on an audio book (great when driving) and a physical book.

Finally, instant delivery.