Bow mount hand control is the way to go for bowfishing. You will want a long shaft of 50+ inches so that you can steer while standing. Ideally the motor should be mounted so that you can steer with your bow drawing hand.
Hand control advantages:
Quick turns; better maneuverability
Easy operator transition; if you shoot a fish, your buddy can just grab the tiller and take over the motor.
Ease of use; no fumbling with foot control or remotes. This is especially advantageous when you have a fish on.
You can see in this pic how my motor is mounted. When deciding the mounting I gave preference to bowfishing, but it works quite well in most all other applications. Since I'm right handed (my right hand is my draw hand) I have the motor offset to the starboard side of the boat.