Itachi Uchiha, Gaara of the Desert, Kakashi Hatake, Sasuke Uchiha, and Naruto Uzumaki from Naruto........ I would be very busy for a while.... Either training to be a ninja or otherwise, good luck figuring out which one though.... Don't ask.
Naruto, Sasuke, Gaara. EDIT, this is getting a lot of comments. IMO Sasuke had it worse than Naruto. Gaara is arguable. Let's just all agree that Kakashi is badass and is the perfect model shinobi and be happy!! :D