Who is the better counter puncher? Donaire or Mayweather?

Mayweather is often seen as a great counter puncher, but is Donaire better? I would say Donaire is better, and here are my reason why. Mayweather tends to only go for scoring counter punches while Donaire can deliver KO counter punching and has done several times. Floyd needs to wear down his opponents, while Donaire can do his thing from the off. Floyd needs a few rounds to adapt and learn his opponents style, he can lose the first few rounds adapting, Donaire adapts during a round and make adjustments much quicker than Floyd. Donaire never gets tagged by anything big, Mayweather has several times. Mayweather is defence first fighter, Donaire can come forward attack and still counter punch, much harder to do. So who is the better counter puncher out of these two?