From the GOAT by division thread:
Jones destroys him. Even in his prime Anderson didn't do well against wrestlers. Jones is a gigantic wrestler who would take Anderson down any time he wanted and carve him up with elbows and GnP.
Anderson's BJJ wouldn't matter against Jones. Belfort (who's a lot quicker with subs on the ground than Anderson) nearly broke Jon's arm and he still didn't tap.
Just my opinion but that would be an absolutely terrible style match-up for Anderson. Jones is a bigger, stronger, better version of Weidman.