I'd say yes since I recently own both.
Screen: I like N6's, but then again, I love Amoled screens. But in sunlight, Moto X was way better.
Camera: Moto X
Comfort: Moto X
Battery: Similar but I was getting slightly better battery life on N6 (probably due to me having Android M).
Honestly, the Moto X felt like Moto saying, "Let's fix N6 problems and create the Moto X Pure Edition."
If I had to recommend one of them to a person, I'd say: Moto X.
The more I look at the Moto X the more I think I should get one. I had the N6 and found it way too big. Even my Nokia 1520 was easier to use than the N6