JJ is a good player. And he might even be an All-Star next year if the Hawks improve and become a playoff-caliber team.
Boris Diaw definitely should be an All-Star. Magic, Charles and Kenny all have said so themselves over this past playoff run.
Diaw was always a good passer and energy guy, but his offensive skills in the lost post improved so much in the playoffs, as did his midrange jumper. He also showed that he was capable of making big shots (that shot at the end of the first game of the Suns-Mavs series is something a lot of guys won't have their entire careers). He really blossomed in Phoenix and the future is bright for him.