It does really come down to what will make you the most comfortable, regardless of others opinions. That being said, I say shave your head. You seem to enjoy it and it suits you. I will say though that a Mohawk is pretty cool. I wish I would have done that before I shaved my head. I've had long hair, a buzz cut, a pompadour, and everything in-between except for the Mohawk.
You could do a combination, Mohawk down the middle with completely smooth shaved sides. Then when you eventually shave the Mohawk, it won't seem like such a task.