At this state i would prefer Marchisio to Banega for 2 obvious reasons... The 12 mio bananas, and the fact that Marchisio not only proved himself on the national team, but also in Serie B, Serie A and to a certain degree, in the Juventus shirt.
With that said, then i haven't seen Banega play a single time, only what Youtube showed me, but i do know that Italy have a reputation of producing good talents, and are in fact the world champions. So maybe our search for some south American starlet could be postponed, when we actually have some good prospects within reach.