The Italy international spent a season in Turin in 2010-11, but is more happy at the Scudetto holders and is looking for three points against his former club this weekend
The Italy international spent last season on loan in Turin, but moved to the Scudetto holders in the summer, and is happy at the Milanese club.
"AC Milan seems like a little paradise, now I understand why all players who come to Milan say they want to stay," the 27-year-old told Corriere dello Sport.
"Now I want to become a key player for this team. I am very glad I made that choice."
Antonio Conte's team are top of the Italian league after a strong start, whilst Massimiliano Allegri's side have started slowly, but despite this, Aquilani does not feel that Sunday's clash will decide the title.
"I do not think tomorrow's match against Juventus will be decisive for the Scudetto, it is still too early," he stated.
"I'm not sure how far the Bianconeri can go; the last couple of years they have said they could do well. Surely, however, the purchases of [Mirko] Vucinic and [Andrea] Pirlo strengthens them," he concluded.