TBH I think Stankovic is better than Mancini. More versatile, more consistent, more experienced. Had a bad season, Mourinho doesn't like him, thus we can get him for peanuts. And Inter leftovers aren't that bad: Canna, C. Zanetti.
I disagree, i think Mancini is really overrated. Mancini was playing for years as full back, so he can defend much beter than Stankovic and he can cover all lateral positions, his effectiveness at this sides make him an ideal winger, as a winger he is better than Stankovic because of his great pace, Sissoko, Marchisio, Alonso, Zanetti and Giovinco gives us plenty of options at the center, but we lack alt reliable solutions to Neddy and Camp.
Stankovic is not a consistency rock either, he isnt motivated anymore, he was won so many titles and he is growing older, not to mention his attitude issues.
Mancini is younger, he can use his pace and penetrations for many years to come, we most only help him to find hid focus/concentration and motivate him enough, he had a bad year because he knows, he is leaving!
ATM and esp if we sign Alonso, we need Mancini more than we need Stankovic.
They are both versatile player but Mancini would be the right choice for Nedy's heir,
Stankovic may or may not return to his good days, they are both experienced and versatile players, Mancini is younger and more adapted to our needs!