Back.
Yup, I like the vocal's version more. It makes the repetition less noticeable, and it makes the first bass section a lot more strong and noticeable. I liked that.
I loved the lyrics, especially the ones after the first bass section. The I didn't like the other ones as much, but they are still good. The voice wasn't too much of my liking. I would prefer a deeper voice.
Don't listen too much to my opinions, however. That's how I would like the song to be, but don't forget this is your song.