The entirety of All Too Well and Begin Again
There's something so brilliant about the simplicity of the "but I do" structure throughout the verses, and the way it changes to reflect the different guys (Begin Again).
The first time I heard All Too Well, I literally gasped when ha scarf reappeared

and "plaid-shirt days and nights," it's just so perfectly evocative of New England.
The effortless cute storytelling in Slay Slay Slay
Lemme stop before I just list the entire album tbh.