Low ping would be more of an advantage, for the same reason you listen actually. You can kill someone with low ping if they have high ping before they see you, because they see everything 200-300ms in the past, which gives you ~150ms of time before they see what you see. The only 'benifit' a high pinger is going to have is because they see things in the past, they sometimes seem to shoot you around a wall, which, while annoying as CRAP, doesn't actually give them nearly as high as an advantage.