Im picking Haugen but it wouldnt be as bad as it sounds. Malinaggi wouldnt be damaged at all and would just lose based on workrate from Hagen in a 7-5 typre fight. I think its possible though that Pauli would beat Haugen to the punch and that could play the changing factor as to who wins.
Haugen imo, i think he is a smarter fighter than Malignaggi, had an underrated jab, was as tough, if not tougher, could counter punch or fight. Malignaggi is a naive fighter imo, gets hit too much and does not fight smart, albeit he tries to look slick.
I suppose Malignaggi's best bet would be to pull a Camacho on Haugen, i thought Camacho would of won that fight if he had not switched off in the last 3 rounds, and had a point taken toward the end, that said Malignaggi is no Camacho.