Khan gets TKOd. His chin is better at 147, but it's still not strong enough to stand against Manny, regardless of Manny's poor power transition at 147. Khan might make him look bad for a few rounds. He's faster and he'll throw in higher volume with a bigger diversity of punches; Pac will have a hard time getting past Khan throwing several jabs at once and then moving out of range with his foot speed and might get stunned by some crazy combination of punches (maybe a body shot if Khan is smart). But Khan's chin will eventually get found and Manny's got the speed to keep the pressure on if Khan gets wobbly. If Pac can't get a stoppage here, it really means his killer instinct is gone.
as one of the biggest Khan fans on this page, I'm surprised that people are picking Khan.
Not a cherry pick by Pac either. Regardless of style matchups, Khan is a deserving contender and a good fighter.