Marquez 5 would surpass a million buys easily due to Mexican support and because everyone knows these two facing each other is always exciting.
If he's looking to win maybe Algieri. Maybe a drained bigger fighter, whoever it is they should stand there and let him punch them.
Retirement before he gets beat up badly. And stop giving money away to charity. He'll end up broke and launching a comeback at 45.
I never thought Pacquiao would struggle with Maidana and he will handle him, it won't be a whitewash like Rios as Maidana is a rung above him but it depends how motivated Pacquiao can get for stepping down in intensity and quality. That will deflate him much more than the Dinamita loss, he couldn't even accept it at the post-fight press conference. He was smiling and saying 'that's boxing' after Marquez 4 and came back like a champ against a tough customer for returning from devastating KO.