Pacquiao or Cotto -- Who should Mayweather fight on May 2?

Mayweather, late in 2014, said that he wanted to fight Pacquiao on May 2, 2015. Pacquiao has since agreed to all of Mayweather's demands including glove size, ring size, blood testing, purse, MGM Grand venue, date. Everything that Mayweather has demanded for the fight to be realized has been accepted by Pacquiao. However, since the announcement by Floyd - and subsequent acceptance by Pacquiao of all of his demands - T.B.C.E. ("the best COWARD ever" according to some boxing experts when referring to Mayweather) seems to be backing out. He may be fighting Cotto instead, at a severe catchweight for the so-called middleweight championship that many believe is actually the owned and held by Golovkin. Should A-side Mayweather fight Pacquiao or should C-side ("C" stands for COWARD) Mayweather fight the fake middleweight champion Miguel Cotto? I think its about time a poll on this should be made.