Whoever said that clipless shoes/pedals don't provide any advantage over clips has clearly never ridden with clipless pedals. I was skeptical at first that a stiff carbon fiber sole could give me more power in my pedalstroke until I tried them. Having that stiff sole in a clipless bike specific shoe provides wayyy more support than the best set of clips and pedals can. No foot flex = 100% power transfer from the rest of your legs movement.

That said, I ride clipless as well as clipped, as well as platforms. It all depends on the bike riding style. Clipless for road biking and long distance stuff, clipped for fixed, and platforms for dirtjumping.