Its because messi is much more direct than ronaldinho was. He think about the goal and how to get the ball there as quick as possible. And that entertained people. Its a means to an end. Whereas for ronaldinho it was about entertaining the crowd..and while doing that helping the team to win.Messi is a great passer of the ball,but I think he's better at quick, short ones, he likes to play fast one-twos rather than long through balls.