I prefer platform pedals on my bikes rather than clipless because I have biomechanical problems (I'm flat-footed & bow-legged and my toes point outward), because I like being able to IMMEDIATELY remove my feet from the pedals (I consider this a safety issue), and because I find that I get little or no efficiency advantage for the type of riding that I do by being attached to the pedals in any way.

Your choices may differ.