My view after single handing 13,000+ miles, 160+ locks, and 100's of different marinas: The more a single hander will travel and see different situations, the more important easy/quick access to dock lines/decks becomes. Age and agility also play a part of course. On the other hand, if the majority of docking will be done at a home dock, or well known docks that access may be less critical.
My criteria for a single handed loop boat included: A lower helm, doors on both sides of the cabin, and walk around decks. With this set up (on my Marine Trader 36) I can loop any dock line on a cleat or lock line/bollard and return to the helm with that line in my hand. This set up gives me maximum flexibility and control of the boat in the wide variety of situations I encounter.
On the other hand, with a bow and stern thruster (I have only a stern thruster) with a remote control, a single hander could dock just about anywhere regardless of how the rest of the boat is set up.
Arch
My criteria for a single handed loop boat included: A lower helm, doors on both sides of the cabin, and walk around decks. With this set up (on my Marine Trader 36) I can loop any dock line on a cleat or lock line/bollard and return to the helm with that line in my hand. This set up gives me maximum flexibility and control of the boat in the wide variety of situations I encounter.
On the other hand, with a bow and stern thruster (I have only a stern thruster) with a remote control, a single hander could dock just about anywhere regardless of how the rest of the boat is set up.
Arch