I chose Bibby, but here's why we should trade all of them:
Bibby: simply not cutting it. He is a great player, but is not playing the true PG role and is not initiating our offense. His value is still tremendous right now, and if we package him with everyone else, we can get a return on value that will more than make up for what we lose. Great guy, but he has never been the one to carry the team. A huge contributer, very clutch, but right now he is proving that he can't make things work unless everyone else is performing to the max. The problem with the Kings, for a long time, has been that we always play down to the level of our competitors. We never just go out there and beat down an overmatch team, we always give them a chance to beat us, and Mike is critical to that- he can't just push the team to be great.
Peja-we need him badly this year, his scoring is one of the only things that can help us win games. But it hurts us too much to keep him on board with his max, especially if we need to rebuild and get stuck with his contract hanging over us. He needs to be trade, and right now, if we want any value for him.
Brad-Paper man. Jerome James won his contract solely by virtue of Brad's defense. He can do well in our offense, but he's no Vlade, and the pieces surrounding him are not right to compliment his skills and compensate his deficiencies. For this team to win, he needs to go. We need a new direction, towards being tough and hard nosed, and he just doesn't fit.
SAR and Bonzi, we should probably hang on to. Bonzi expires after this year, and his value isn't high anyway, so we might as well hold on to him. Also, our SG is apparently the only guy on our team who can go for 10 rebounds. SAR is very cheap, and we probably won't get a great return in value for trading him right now. He isn't the toughest, but if we get a good PF, decent C, we can put him at SF and still be a good, tough, rebounding team. I don't think we should rebuild around these two, but we should go after some great players to build around, and then we immediately have 2 phenomenal role players to plug in next to them.