Which Juanes song is best to learn on guitar?

"Fotografia" is solid, but the catch is that a lot of beginners get stuck on the strumming pattern without really nailing it down - you need to practice that specific pattern until it becomes automatic or you're gonna sound sloppy. If you want something where you actually notice quick progress, try "Me Enamora": it's got basic chords (mostly C, G, A minor, D minor), the progression is repetitive so your head picks it up in a couple sessions, and when you get the light fingerpicking or clean strumming down, it sounds pretty good. The key thing is not to try to sound exactly like the recording - play the chord structure cleanly and you've already done the job.

"A Dios le pido" is probably your best bet because the chords are simple but the strumming pattern is where you really see the progress, so it's not boring to practice. "Fotografía" is okay, but honestly the rhythm is a bit slower and sometimes it feels monotonous when you're learning it. Do you already nail quick chord changes or are you still working on that? If it's the latter, maybe start with something even more laid-back like "La camisa negra" which is literally just three chords repeated, and then jump to "A Dios le pido" once you've got a better feel for it.

Do you already have the basic chords down or are you still working on that? Because the answer really changes depending on where you're at. If you can handle Am, E, A, and D without any trouble, then "A Dios le pido" is your song. The chords themselves are super easy, but what makes it valuable is that the strumming pattern is clean and repetitive, so you actually see real progress when you practice it. It's not a boring song to learn because it sounds good from the start if you hit the chords with rhythm.

What nobody mentions is that a lot of beginners pick these songs without paying attention to needing a steady tempo. "A Dios le pido" has a calm rhythm that lets you mark the chord changes cleanly without rushing. If you try something faster too soon, you get lost in the changes and it discourages you. Practice with a metronome, even if it's slow at first, because that's the trick to making it actually sound good.

If you still don't have those chords down, then yeah, start with something even more basic like "Llorarás" which is basically just three chords and nothing else. But once you feel comfortable, "A Dios le pido" is where you see that you're actually starting to have control.