Humble personality doesn't mean he is a better player. I'd rank Pele and Maradona both above him currently. I'd also rank several other players above him at the moment. I am not convinced that a prime Ronaldo wasn't better. The only time he played with a team as dominant as the current Barca was with Brazil. He was extremely prolific everywhere he played, and he was virtually unstoppable in his prime. I also still think Zidane's overall impact was greater than Messi's. If I had to pick between Messi and Zidane, I'd pick Zidane every time.
Also, Jose Mourinho and Zlatan Ibrahimovic both seem to agree C. Ronaldo is better. I won't say that's completely true, but they make some good points. Part of the reason Messi is scoring as much as he does is the team he is playing with. I'm pretty sure there are many players that would go into that team and score 30-40 goals in a season. C. Ronaldo has never quite got that kind of help.
www.youtube.com/watch?v=qCLPkN7RnjEIbrahimovic didn't have a video, but his quote was something like this, if Ronaldo had the help Messi does, he would have scored 100 goals in a season.
Now, I'm more of the opinion it's better just to sit back and enjoy than argue over whom is better. They are both great, and there are also many legends in the history of football. Picking the all time best is a nearly impossible task.