Cool, your opinion.
I on the other hand am convinced that Sanchez is much better than Rossi. Sanchez is 2 years younger (22 months to be more exact) and I see that many use his goal tally from this season as an argument in Rossi's favor, forgetting that Sanchez is actually a midfielder who, no, isn't a support striker and being the one who was closest behind Di Natale doesn't make him a support striker. Sanchez played a free role and can be seen near or in his own box lots of times.
I'll leave this as something to be quoted next season already: The near future will show how laughable the comparison between Sanchez and Rossi is.
I'd actually pick Sanchez ahead of Aguero