Berto is a journeyman at this point of his career. But he's a tough fight for whoever he fights. Even while being dominated he can land some big punches and bust up any fighter.
Porter. Seriously how can anyone pick berto? when was the last time berto looked impressive? first 6 rounds vs ortiz in 2011? Not to mention hes been injured like crazy (torn bicep, f*cked shoulder vs karass)
Both had a similar talent in my opinion, but Berto has lose a lot of credibility on his last fights, and Porter has grow up a lot. I choose Shawn by UD or late KO.
I can imagine Berto getting caught with left hooks and shrugging saying "can't him me" while he gets repeatedly punched in the face.
Porter by TKO
While this is true I can also see Berto catching Porter with an uppercut when he lunges in all wild.