First of all you used a video game as a reference as to why Gerrard is so good. That's not a good way of giving a reason as to why he is the best. Ronaldinho has been voted player of the year two seasons in a row now, for good reason. This award is voted by National team captains and national team coaches. I think Ronaldino has definetely been deserving of this award, if not Henry should have gotten it.
Ronaldinho is not the best player in the world for various reasons. First off he should NOT be a repeat World Player of the Year award winner because he has only outright won the award once and that was this past season. In 2003 Zinedine Zidane beat Henry for the award and that was the biggest farce in the history of the award being handed out. Zidane had a terrible season at Real Madrid and the only reason he won is because of his standing in the game and that volley that he had against Bayern Munich. Henry was coming off a 27 goal, 23 assist season which is just unearthly if you consider he is doing that as a CF.
In 2004 Ronaldinho got his first award after they say he had a stellar season, but truth be told if it had not been for Edgar Davids coming to Barcelona, they would have finished outside the top 4 and no one would have mentioned Ronnie as a World Player candidate.
The reason the award for best player is a joke is because the National Team coaches and captains that vote on it are completely blind or retarded. If you run a search on google for the final ballots you can see a .pdf file of the way the voting was done and there are numerous coaches and captains that didn't even have Henry in there top 3 which is just plain dumb. Henry has been the best player on the planet for the last 4 seasons at least and that can be argued by all the bandwagon Ronaldinho fans, but if people took the time to analyze what the awards are based off of, it's easy to see that Henry is hands down the best on the planet.
In terms of overall play, Ronaldinho is classed as a midfielder, but isn't a midfielder by any means. Sure he starts in midfield, but almost the entire game is spent in the final third of the field which is the same area that strikers play. People like to mention Ronnies stats, but if you look at Ronnies stats over the time he has been at Barca and measure Henry's stats during that same time, you will see that Henry flat out murders Ronnie across the board. More goals, more assists, most shots, more fouls suffered, etc etc.
The people that say Ronnie is the best are the people that have played FIFA video games and look at his rating just like that kid that used Gerrard's video game rating as a basis for saying he is the best which he isn't.