I'm curious what the consensus is regarding music....I am really considering removing my synced music from iTunes, to being 100% on Spotify. There are a couple exceptions such as spoken audio I sync from iTunes that would never make it to Spotify, and the occasional rare album. Best part is the music stays in sync when I add something from my Mac, and vice versa. I go back and forth between Music.app and Spotify to listen to different songs on different apps, would be better to have it all in one central place.
Then when it comes to syncing pictures, and videos, those can both be added to iCloud and download to your phone and would be in Photos on your iOS device.
Then when it comes to syncing pictures, and videos, those can both be added to iCloud and download to your phone and would be in Photos on your iOS device.