Yeah it is more like that, everyone has his own idea of not only how great the peak of the player was but also how frequently he performed at that level. For example with a player like Irwin you know he would give a minimum of 7/10, but there are players like Nani like you said who can give a 10/10 but also 3/10.
It's all very subjective and the point is not to have a universal definition of a player's peak, which is why we have these discussions where everyone expresses how they view what the players are likely to produce in the game. As for your earlier post, you said everyone will score 2-3 goals, but you might have forgotten that the defenders also are supposed to be at their peak at which a lot of names here stopped the best of threats. Say a maldini at his peak wouldn't allow many wingers to make an impact which he did against the very best of his time.
At the end, we don't expect everyone to agree with the same definition of peak or quality of a player, which is great as that makes for interesting debates.
And also, when you see the games, if you imagine them happening in reality there's no real way of predicting who will win so in the end you have take it a lot more casually and not get fixated on the result of the voting. Every team has players who used to single handedly win games, etc so the bigger thing that comes out of these games from a serious point of view are the discussions and debates while the voting results should be taken a lot less seriously.
