Hard to say. I'd imagine that if all were on stage, standing next to each other, under the same lighting, all equal distance from the photographer, that Dorian or Ronnie would win. You can make a case for Phil, but his structure would be hard to overcome against Dorian or Ronnie against their very best.
One thing I am certain of is Derek would be a distant 4th.
Based on these pictures alone, I'd say Dorian.
