Maidana is the stronger and wilder version of Rios but also with less stamina and probably chin. Obviously Maidana can KO Pac, but style makes fights and Pac wont have trouble finding target.
Pacquiao would beat Maidana better than Mayweather for 1 reason: offense. Mayweather's style to sit back and counter was smothered by Maidana. Pacquiao would press the action and get off first, allowing him to tag Maidana and get out before the return. Floyd's defensive style doesn't look good against guys like Maidana. That's why Castillo, Oscar, and Maidana had some success. They smothered his counter attack and used their weight advantage. That's why Pacquiao beats some guys better than Floyd and vice versa. Styles. Fact is, it doesn't matter who beat who better, they're both on top. I think Canelo beats, possibly KOs depending on weight, Pacquiao. And I think Mayweather beats Bradley easier than Pacquiao did.
With that said, I don't think Pacquiao can defend from Maidana's swarming attack. It's a bit of a toss-up but the smart pick is Pacquiao.
Maidana is tailored made for Pacquiao but Mayweather struggled with Maidana. Styles make fights but atleast it will make the Pac-Mayweather more interesting.
Maidana would win, Pacquiao is just really not that good these days, I doubt he could handle the rough and often dirty tactics of Maidana
Pacquiao destroys maidana.Pacquiao eats up slow plodders like maidana for breakfast.the only chance maidana has is to ko pacman he sure as hell is not outboxing pacman but pacman has a good chin not great but good but maidana doesn't exactly have true one punch power maidana wears guys down with multiple punches and he is way too slow to be able to land on pacman like that.maidana's chin isn't great and he is vulnerable to the body little josesito lopez had maidana down and hurt imagine pacman landing on maidana.maidana also has bad stamina and gets tired late in fights.plus Pacquiao owns and destroys all robert garcia trained fighters.only *****s make maidana out to be some super elite figher.Pacquiao beats maidana by KO
Hope this fight happens in 2015, after Pacquiao puts a beating on Maidana... for sure Mayweather will be having nightmares again like how Pacquiao put a beating on Cotto.