A lot of the newer RIB's seem to be centre control, but I have no idea why that has changed from the traditonal location to the right. I agree that the centre position certainly facilitates an element of "dual control" and this is best if you want inexperienced clients/people to drive and you still retain an element of cotrol. From a pure control perspective in waves, I prefer my right hand on the throttle as it's naturally my strongest, (and most sensitive to small movements) and in fact, I would not be happy with the central location but i expect I would get used to it.
Someone posted something about left and right hand drive just now which was not strictly accurate
Ironically, most (if not all) small British motor boats were produced left hookers up to about the '80's when the US right hand drive influence took over and dominated design. I used to work timber barges and salvage work on the Thames and from thence to the Thames Conservancy Board and we always understood the reason for UK boats being left hookers was that as navigation rules dictated port-to-port passes on the river(s) then skippers could easily communicate with each other, and coming along port side to was more natural than starboard side to. Don't ask me why - this was the conventional wisdom. Whatever. It took years for me to get used to driving a boat with the wheel on the right and even now, doesn't seem entirely right. I still prefer to come alongside port side to.