I'd love to see this fight happen, Randy can take the dude is awesome at gameplanning and I'm sure he'll find the perfect gameplan for Machida. The dude isn't the mystical, hard-to-figure-out guy everyone thought he was.
It will be a tough, close fight but Randy, if properly motivated can take this one and quite dominantly IMO.
Yes Toney wasn't an elite fighter, Yes Coleman wasn't an elite fighter, but fighters that still had a danger about them and Randy handled them like children. Vera was a very dangerous opponent for him but he took Vera's hardest shots and still came forward and looked great in doing it.
If this fight happens....Randy by UD.