I will go with Chico. I think Harris is a bit too wild with his punches. I see Chico countering and knocking Harris out.
For once I agree with you. Harris has the talent to beat Chico from the outside, but I think he'd feel too macho for his own good and try to trade with Chico, and he'd pay for it. I could see Corrales getting up from Harris' power punches, but I CANT see Harris getting up from Chico's. Corrales by KO. Too bad this fight never happened.
At 140, I don't think Chico could have beaten Harris. I don't think Chico would have the toughness to weather the big right hands storm that he'd have to endure to get close to Harris and land his short power punches. He'd get KO'ed silly. A bit like he was against Castillo. Above 135, Chico is far from a beast IMHO... PFP, I think Chico wins though.
I think he coulda been a beast had he moved up to 140 PRE-Castillo. That first Castillo fight just ruined him. Harris' jaw is far from great, if Maussa would KO him, Chico sure as hell could also. Plus Harris went life and death with a former lightweight in Lazcano.