I am not sure where this came from - if anything, Aguero is being overblown here and Rossi is being pummeled left and right and if anyone has had anything good to say about Rossi, it was probably more from feeling sorry about him

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The stats you quoted are not showing Rossi as the better player, but if anything, they show Rossi is in no particular way inferior to the Argentine let alone be the crap player many here think he is - Aguero is just the fancier name and the more exotic player of the two and hence the love of the fans he is getting but as stats show, Rossi is no slouch compared even to Aguero.
In the end, the better player is the one who fits best in your team.