Stankovic is quite certain Kolarov will join

.
When your best friend from Lazio plays for Inter, when your friend from the NT Stankovic plays for Inter and a bunch of other Serbian kids play there, of course you'll choose Inter if it's between Inter and Juve.
And that's without counting the other pros:
- Bigger wage than what Juve will give you.
- Playing for a team that was winning the league, is winning the league and looks like they'll win the league in the future.
- Team that is playing CL and will surely play CL next year too.
- Mourinho vs Ferrara or whichever amateur that will come after Ferrara.
- No pure LB in Inter, which almost guarantees a starting spot to him.
Hell, even if Juve offers him bigger wages than what Inter will offer, if he's smart he'll still choose Inter.