It sometimes helps to think of the absolute middle ground and work out details from there. So for example, if you took a board that was the most average size and shape for you, eg. if it measures to your navel, etc. Then you choose to push typical board features to define your ride:
You want a more flexible and lively board (but less durable, especially in warm water) choose PE core
You want a more durable and stable (less bubbles and banana) but sometimes too stiff in cold water. choose PP core
You are heavy for your height, or want more float or speed on smaller waves. Choose slightly longer board, or bat tail at same length
You are light for your height or ride heavy, hollow waves with less paddling involved. Choose shorter board or crescent tail at same length
You like boosting airs, riding with speed and doing moves. Choose a bat tail
You like carving and tuberiding and handling hollow waves. Choose a crescent tail.
You mostly ride DK. Choose DK outline (narrow nose, lots of outline curve, wide point further back)
You mostly ride prone. Choose prone outline (wide nose, straight outline, wide point further forward)
You destroy boards. Choose a stringer
You like to pose. Choose a bottom skin with a graphic that compliments your fins and rash vest.
Thats how I see it in the mess that is my head anyway and I am in no way claiming this to be the bible of board choosing criteria.
