Martinez would love a stoppage, but he would love a win first, and a win by KO second. A stoppage would help him media for those that are on the fence about him, but realistically if he does stop Chavez more than half of those on the fence will say Chavez had no shot as he was to small and to slow and any stoppage was likely as he is purely offensive and not technical and defensive.
Although Martinez would gain more respect, at what cost? And how much would a stoppage help his career as a dominant decision?
Although we also have seen a consistency of bad decisions in the past few years, if the fight goes as many think with Chavez engaging and taking one to several shots on the way in, much of the Vegas fans will cheer the big punches Martinez is waiting and possibly landing. Even is Chavez can deflect 70% of the power in many shots, the fans still cheer. If the judges are not intentionally cheating, they are also swayed by the roar of fans that will be more for Chavez but still yell when Martinez lands fast shots. It is very common judges on the square are just as easily biased by hometown fans as anyone. Just because they are judges doesn't make them less human and immune to being swayed, but we would like to believe they would be as it is their job to be non-partial. That is true pre-fight, but any judge who loves boxing and gets any rush like a true fan is a victim of being swayed with the majority.