Jealousy is such a strong word. If you mean by that that I would love Messi and Ronaldinho to play for Juventus, you're right, but if you mean I would like my team to play like Barca you're wrong.
I can honestly say I want my team to play football the way Italy did during the World Cup. Other than Barcelona they played possession football against Germany with an actual gameplan. In the end only two or three Barca passes actually go deep and are threatening and they almost always come from Ronaldinho, Messi or Xavi. All in all Barcelona is far from a great team. Hell, even I could tap the ball back to Xavi forty times. And what about their unwillingness to provide Zambrotta on the wing? Plain stupid if you ask me.
I understand why people would admire Chelsea. Unlike Barcelona they try to play as fast as possible. Whereas you could compare Rijkaard with having tea with your grandmother, Mourinho takes you on the rollercoaster. That said I'm not a fan of Robben's or Drogba's antics.