I don't know if I like the idea of Anderson v Jones. Anderson is a freak and I am huge fan. Destroyed the middleweight class and hasn't got much else to prove but for him to go up a weight class at his age (no, I am not saying he is past it) and fight someone like Jones could be a mistake and hurt his legacy (yes, I am predicting Jones to win).
I still like the idea of GSP v Anderson though. I think that fight would be a better fit for both fighters.
For Jones, I would love to see him dominate the LHW division first. There are still some top contenders to take care of like Evans, Machida, etc. and even someone like Phil Davis after he has a few more fights.
Once Jones has cleared the LHW division, I think he should step up to heavyweight. There would be some good fights there for him and with his size and reach, he could more than hold his own. Jones against the likes of JDS and Cain would be great.