havent read what all the discussion is about the last 152 pages, but...
On a weekly basis, Messi is demonstrating his agility, his pace, his technique, his creativity, the power and timing of his shots, his almost impossible ability to control the ball while reading the game and spotting the movement of teammates and oppponents.
Taken into account that the pace and physical challenge of today's football is incomparable to 20 (maradona) or 35 (pele) years ago, you would have to conclude that Messi is simply the best player ever.