None of them will make the playoffs.
Portland- Lillard is the only real player on that team, the rest are mostly scrubs.
Lakers- They have a good group of role players (Hibbert, Bass, Williams) and good young talent (Russell, Clarkson), but they have no star player (Kobe is a washed up has been). That's not a winning formula.
Sacramento- This team will likely be the best of the bunch, but I doubt they're good enough to make the playoffs in the loaded WC. Too many other good teams ahead of them, and really, the Kings aren't the best fitting collection of talent. I'm not particularly enamored with the Cousins, Gay, Rondo troika, I don't believe their talents complement each other well (not enough outside shooting).