Good line-up. I also prefer Antonini and Zambrotta over Abate, at least for now. Pato indeed should go in scoring position often, but still has to be on the right wing also. It really is a combination between yours and the 4-3-3 with Pato as right sided forward. Since Ronaldinho is left winger, and Pato is not really a crosser, I would switch Antonini with Zambrotta, since Antonini is a better crosser nowadays. I also would switch Pirlo with Seedorf, since Seedorf should play AMC so he can click well with Ronaldinho.
Borriello is of course a mobile CF, so he creates space for Pato rather than walking in his foot steps.
For those who doesn't want to read:
Ronaldinho - Borriello <- Pato
Seedorf
Ambrosini - Pirlo
Zambrotta - Thiago Silva - Nesta - Antonini
(I've got faith in both Dida and Abbiati)