Having the instincts of a Villains Fan, I would gladly ally myself with the villain! It's actually not that bad, you don't even feel much pain when you transform.
Err..
If you're wondering: Is it different? Not that much different, except you cannot heal or be healed. You cannot enter buildings. And you're running around as one of the dead. But to me, it's really fun!
Of course, that is coming from someone who is a Villain's fan that would gladly lay down her life for both Davy Jones and Jolly Roger.. ^_^