Which way is it easiest to add in the animation?

Hi!
I am still very very new when it comes how to work within Unreal Engine 5. But I am and is watching thro a YT tutorial that explains to me how to add animation to my enemy AI. And in that video he showed me two ways. One way was thro the “Animation Blueprint”, and the second way was by using the Blueprint within the enemy AI by writing up “Play Anim Montage”. So my question is, which it says on the title, which way is it the easiest to learn but also to add the animation to my enemy AI? Should I only use the “Animation Blueprint”, only use the “Play Anim Montage” on my AI, or, use both ways?

The YT video that I am using as refrence: