Current middleweight world champion Sergio Martinez sounds more and more likely to return to 154 pounds in order to chase a mega-fight with Manny Pacquiao or Floyd Mayweather Jr, and he thinks Mayweather would be the tougher fight:
"Mayweather would be a better fight I think because he is physically bigger than Pacquiao and can carry the 154 pounds better than Pacquiao. With Mayweather, I think this would be the most difficult fight of my career and I see it going the distance and being judged on points, but together we would put on a good show. ... Pacquiao is working his business by picking boxers he knows he can beat and are pretty close to retirement. He is picking guys that are easy to beat so when you do this, it isn't hard to be pound-for-pound and if we fought I would beat him by knock out."
Martinez (47-2-2, 26 KO) is set to return to HBO on October 1, but no opponent has been named, and there aren't even any strong rumors out there. But he has said he would be willing to return to 154 in order to chase the big fights, as he's disappointed by the lack of major options at 160. Of course he'll not soon find himself any more thrilled by the options at 154, as there are few major names there (and those names aren't going to be matched with him), but the ultimate goal is to try and coax one of the big two. It probably won't happen, but I guess it's an admirable goal.