You are asking about wrist vs. console. I go wrist for one simple reason: I need my left hand to control buoyancy, whether dumping air as I rise or adding it as I descend. If I am usinga console, it is typically also on the left. My left hand would be rather busy.
With a depth display on my right wrist, I can look at the display while controlling my BCD with my left. If I had to have a console, I would almost certainly have to be one of three people on the planet trying to put it on the right side without fouling my long hose.
That being said, another diver on a recent trip had his console clipped to the front of his BCD where he could see it hands free. He had the same explanation: He could look atthe console while dumping or adding gas. So...
I guess my point is to make sure that whatever you end up doing allows you to control buoyancy and read your depth at the same time with ease.