Yeah, it just really depends.

Sometimes anime is better, sometimes the manga is better. It's really about the direction of the story and how it's effectively told.
I'm kind of torn to say that anime is more preferred because of animation, music, and voice (I'm lazy and manga takes too much imagination and brain power lol) but manga can be much more detailed by providing a lot more development and information.. Though sometimes, I have trouble with manga during fight scenes. It's a little hard to see the movement if the artist isnt' the best at fight scenes.

It's a almost tie..but I guess anime wins (by like 0.009%).