I used to say that on here as well, in fact, I looked up my old posts from the fight night and I posted that the fight was close.
Rewatched it a few weeks ago on Fight Pass - it was not a close fight. Jones didn't dominate throughout, but there were periods of times where Jones definitely dominated. DC never dominated.
Jones showed a lot more tools, versatility, and gained momentum as the fight went on. DC was exactly the opposite. He couldn't keep up his grinding-forward pace, was taking too much damage to land anything of his own, and lost control of the fight.
I would say confidently, as much as I dislike Jones as a person, he was head-and-shoulders the more talented fighter. Not to say DC isn't one of the great fighters of this generation, and very dangerous, both are true, but Jones is in actuality the king of freaks.
Jones pulled that off while partying on cocaine all night weeks before the fight.
If Jon shows up in shape and prepared, I think he is a substantial favorite.