[Serious topic] Besides Pacquiao, who should Mayweather fight next at this point?

Okay, Mayweather KO'd Ortiz, people were outraged, some didn't care, and some are just looking forward to other fights. Who do you all think Mayweather should fight next? Choices are: http://www.arkhilario.com/wp-content/uploads/Floyd-Mayweather-Jr-Knocks-Out-Victor-Ortiz.jpg #1: Ortiz rematch- Reason: Mayweather was outboxing and outhustling Ortiz during the fight. Though Ortiz had his moments, they were few and far in between. He was showing tenacity in the fourth where he managed to get some reactions from the crowd by backing Mayweather up into the corner. He grew frustrated, headbutted Mayweather and Mayweather responded by knocking him out in a fashion that has all boxing fans debating. As a result, some are calling for Mayweather to give him a rematch. The only con: Detractors may look down upon this decision and see it as just another opportunity for Mayweather to gain another win and another paycheck with the same outcome given that Mayweather was beating Ortiz score-wise and punchstat-wise. http://cozzone.com/wp-content/uploads/2011/07/cozzone_KhanJudah0457.jpg #2: Amir Khan- Reason: Amir Khan is one of the biggest moneymakers on the East side of the Atlantic. A silver medallist, he has been considered to be a great ever since he turned pro. Despite running into a speed bump in his only loss against Prescott via 1st round KO, he has since then started fighting better. Under the guidance of Freddie Roach, he has gotten wins over Paulie Malignaggi, Andreas Kotelnik, Marcos Maidana, and Zab Judah. If he gets past Lamont Peterson later during this year, Khan could be a likely candidate because of his skills and because of the huge financial attraction he is. Khan’s fast hands and background as a solid amateur could make for an interesting fight. The only con: The only asterisk is that he hasn’t fought at 147, and to some that may mean that he doesn’t represent a threat to Floyd. http://a.espncdn.com/photo/2011/0312/box_a_martinez_d1_576.jpg #3: Sergio Martínez- Reason: Flying under most people’s radars was Sergio Martínez, a good fighter with a southpaw stance who could never quite get big exposure. Over the course of a few years while fighting on HBO at 154, Sergio Martínez took on decent opposition while getting dates with name contenders. He drew with Kermit Cintrón in a fight many thought he won by KO and has ever since has been watched closely. His big match came in late 2009 when he was brought in as a late replacement for Kelly Pavlik against the very much-feared Paul Williams. After a riveting slugfest, Paul Williams was awarded the majority decision. Sergio Martínez then went to 160 to challenge Kelly Pavlik for his middleweight crown and succeeded. Later, he went on to make a shocking statement by knocking Paul Williams out cold in the second round of their rematch. He has since then made a title defense against Sergei Dzinziruk by way of TKO and is now expected to beat Darren Barker in another middleweight defense. Sergio Martínez has power, would probably be the biggest fighter Mayweather has ever fought, has a southpaw stance, and can throw combinations at rapid intervals. Think of him as a bigger Pacquiao, without the starpower, not as active with his punches or as fast, but his certainly bigger and stronger than him. The only con: Martínez has stated to be able to make weight at 154 or 150, but fighting at 160 for two years is bound to make going back DOWN in weight a hindrance. http://i86.photobucket.com/albums/k110/FightFanDotCom/CottoMargarito2-1.jpg #4: The winner of Cotto-Margarito Reason: Cotto and Margarito are fighters people have always clamored for Mayweather to face. They were doing so in 2007, and they were certainly doing so mid-2008, that is until Margarito derailed Cotto in their first match. At which point, it became a matter of wanting Mayweather to come out of retirement to fight Margarito after that humongous upset. Three years later, Cotto and Margarito are looking to settle their score in an anticipated grudge rematch. Both fighters will look impressive in their wins as this fight nearly guarantees action and is sure to look imposing upon a savage and probably brutal-to-watch fashion. The only con: Neither Cotto nor Margarito are the same fighters they once were. Cotto hasn’t fought at 147 in two years (since his fight with Pacquiao, or more accurately, since his fight with Clottey), Margarito in nearly three years (since his TKO loss against Mosley). Aside from that, both fighters have taken their share of punishment since their bloody encounter. Cotto has gone on to be in wars with Clottey and Pacquiao. Margarito, on the other hand, has gone on to be pulverized over the course of nine one-sided rounds against Mosley and has had his cheekbone broken by Pacquiao in a fight where he was badly beaten up as well. By the time they are finished with each other neither fighter may have a lot left in the tank to take on a finely-tuned, fresher Mayweather.