I want to get better in case I'll find a team for the next season and what's a better way than watching how the best players do it? Besides it can be interesting to have this discussion every once in a while. You can include retired players as well if you think they would still be the best in their position nowadays.
Today when I understand the game a bit more I think that P4ER is probably the best (in any position). I personally haven't seen yet another player who can match his technical level and I think that he understands the game better than most. I'm curious to hear other opinions.