Bute's chin isn't better then Dawson's. Dawson being chinny is just pure bull****. Dawson has proven he's tough and can take a punch, he is a natural lhw and walks around 180-190lbs. As for Dawson's ring intelligence. I would love to see how Bute fares against Johnson, he also traded punches with Alejandro Berrio when they fought.
I'd take Dawson by Wide decision. Andrade is slow and quite predictable, Dawson would have a field day outboxing him. The large holes in Andrade's defence were exposed in the Kessler fight, comparing the two fighters you can see that Dawson would also be able to tag him often. I think Chad would have learnt from his fight against Johnson that he should stick to boxing instead of trading, I expect him to do this against Andrade. Although they both have great chins, Andrade is not nearly as good defensively as Johnson. His peek-a-boo type defensive stance was quite effective against Dawson and was a key factor in his succes, this something that Andrade does not utilize. Chad outspeeds, outmaneuvers and outboxes Andrade en route to a wide decision. All this is assuming that Dawson dones't trade with Andrade.