Also gotta point out the ls50's are also "generally agreed to be an improvement upon the legendary LS3/5s"That's because they are, and by a wide margin. However, they require a very good (not necessarily expensive) amp to hear the improvement.
I really can't fathom how some prefer the standard P3s to the LS50s, if a competent amp and source is used. I can't help but suspect it's a matter of aesthetic bias affecting the auditory senses.