I can give a little info on those that say hes passed it or to old. I have watched alot of La liga this year and he's carried this Barca team, he plays the same now as he did when he was 30, if it was not for Barca being shit he would be on for the Ballon Dor again this year. the only thing that really has changed in his game is that he likes to involve the young players setting them up with goals etc hes alot more of a team player.
He still has those amazing dribbles in him of passing players but now he prefers to create chances. But when he needs to he will score when he wants. Watching him this year i was imagining him in our team and it would be chaos for premier league defences. We would be looking at a motivated Messi under Pep who wants another champions league before he retires, your looking at maybe 40 to 50 goals messi if he plays false 9 in our system.