Their performances since then, can speak for a lot, but Jones has only fought once and it was after a long lay off so I'd like to do him justice. He is however, coming off another long lay off and if his striking is anywhere as stiff as it was against OSP then I believe DC, as he said himslelf, runs through him. I honestly believe Jones' best shot is on the ground, since that seems to be where he's improved the most and that seems to be where he's most comfortable now if you listen to some of his interviews after the Hendo grappling match.
Also, DC's striking has improved drastically, not necessarily in the pure skill of it itself, but his ability to close the distance ( his main disadvantage against Jones / what he needs most against him ) and his dirty boxing. In the Gustaffson fight, he did a fucking amazing job at closing the distance and unveiled these slickk uppercuts in the clinch that were busting Gus up and troubling him and I honestly believe that ( the ability to close the distance and uppercuts / dirty boxing in the clinch ) is what caps it off for him.