What's the more impressive win. Rios or Maidana

I think Maidana is the better fighter, and had he been dominated the way Rios was, then it would have been a much more impressive win. But he wasnt. Given that Rios was completely outclassed, and the Mayweather/Maidana fight was a much rougher fight for the victor, it evens it out more, but Id still rate the Maidana fight slightly higher, given that I think Rios is fairly 'average' (relative to the world class scene).