My preference would be:
Sneijder > Mata > Nasri
Of course valuation wise, it would be:
Mata > Nasri > Sneijder
so , as a compromise, lets go for Mata :) Silva and he already have an understanding of each other, and together they could be dynamite...
Somehow I'm not sure Nasri will deliver as people here state...he gets injured a lot.. I think Van Persie, Fabregas and Nasri would draw lots on whose turn it was to get injured :)
imo Nasri struck form only in the latter part of the season, and again faded to anonymity at the very end..now that could be because the rest of the Arsenal team were shite, so I don't know...