Bonucci has been a key member of a dominant Juventus side over the last few years and is a crucial part of an all-Bianconeri back three alongside Giorgio Chiellini and Andrea Barzagli.
And Buffon believes the 29-year-old is a special talent, insisting he is a "complete player".
"He's got great feet and the courage to play these risky passes and start these audacious moves. I think that he's improved enormously over the past few years. I really think that he's the complete player and one of the best in the world in his position."
"With all the defences I've played with, I've always had a special rapport with these players. I think that's the most important ingredient when it comes to achieving success.
"We've been playing together for a number of years. We're a fully-functioning unit, like clockwork, we know each other well, even off the pitch.
"However, one can never afford to relax at this level. That's why if we want to come off the pitch with a good result, we have to be focused and prepare well."
Their main focus will be on Buffon's ex-Juventus team-mate Ibrahimovic, who will lead the line for Sweden on Friday and was the scorer of a stunning back-heeled volley against Italy at Euro 2004.
"It was a great goal," admitted Buffon. "Although I didn't fully appreciate that wonderful technical ability until a few years later.
"Back then, though, he was clearly special but he was still quite young and we weren't quite sure how to understand how far he would go.
"Twelve years on, he's already achieved so many things and won so many titles - and he's already scored that kind of goal three or four times. It's become his specialty. When he does things like that these days, it's no longer a surprise.
"Clearly we are very wary of him. He's one of a small group of absolute superstars that always make the difference for the teams that they play for.
"But clearly Sweden are not a one-man team, they have a number of other great players. A talent like his, and his belief in himself that he is a superstar, is not something you see in the other players. But for myself and my team-mates in the back-line, he's going to be very dangerous."