This discussion will run and run, as it has elsewhere on the web. Remember that you can buy normal bulbs that have a higher light output than that of standard ones but are still rated at the same wattage. Although it doesn't matter for some lights, the effective efficiency of a light depends on the filament position relative to the reflector. This is critical for headlights. You may get a nice pool of light but it has to be correctly positioned for the reflector to direct it correctly through the lens which itself defines the beam pattern.
LED bulbs, especially those with multiple panels will make lots of light but be unable to produce the same point source as a filament to create a proper beam. Think about the 2 filaments in a standard bulb giving the main and dip beams that give completely different beam patterns. These filaments are about 2-3mm apart. Think about that when you are looking at an LED bulb with several panels.
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