Liddell has become nothing more than a muse of Dana White. He talks shit about practically everyone, clearly disregards the facts and is quickly losing any credibility.
This of course was proven when he said he could wreck Fedor. 
Anyways, I think Chuck takes Kimbo pretty easily… Chuck has a legitimate reach advantage and while the Pit doesn’t necessarily train that much in head movement, his counter punching style from the outside really would tear into a pitbull like Kimbo. Chuck stays on the outside, generally has a very strong chin, and even though he is getting older… they say the last thing to go is power ( after speed, timing, agility, endurance ). Kimbo has proven to ignore his coaches gameplan in every fight so far ( most recently proven when he completely avoided taking down tank and instead stood and banged with him ) and as soon as his ego got in the way and he choose to shoot it out with chuck, it’d come to an end.