I'd root for Anderson, but I'd expect Jones to brutalize him. Anderson simply didn't have the size, strength, or wrestling ability to keep the fight standing against Jones. And once on the ground, I think Jones would have pummeled him.
That being said, it's a damn shame we didn't get to see that fight. It would have been nuts if Anderson somehow went full Matrix on Jones.
Dana has pushed this "we make all the big fights" nonsense for years, so much so that the main stream media now reports it as fact, but the reality is that many of the biggest fights were never made.