Really have no idea. Seems like Sanchez is a better fit. If Messi'd reintegrate to RW then obviously Rossi but as we play now I'd rather have Sanchez. I think Villa is partially the reason to why we had a major goal drought with 1-0 wins in the beginning of this season. He simply can't create as much while he's a striker by soul.
With a winger, we'd have created much more chances and by force ended the goal drought. So it's:
Sanchez-Messi-Pedro
or Pedro-Rossi-Messi for me. However, Pedro-Messi-Rossi might work aswell. We'll have to see what Pep has in mind.
I definitely see the logic in what you are saying, but is Sanchez skillful enough to be our winger? Maybe he is better bet than Villa, at that position, but then what happens with Villa? Rossi is also a striker by nature, but he would suit our passing game like a glove.
So, to be precise:
Rossi: technically gifted and would suit our style, but not a natural winger.
Sanchez: a natural winger, but a bit lacking in technique and finesse.
It really is a hard choice, but I would bite the bullet and go for Rossi. And maybe Messi, should play as winger sometimes. Or maybe we should just go for Kun instead...
He's too expensive. Better throw the funds together and sign these two tanks for the same price as Kun!
He would cost 45m euros which is decent for a player of his caliber (and frankly, x10 the player that Ibra ever was) and his age. I do not find that amount extortionate.
But if we can get both Rossi and Sanchez for about the same amount of money, then I say bring those guys on.