Ha: Bigger the ad the higher the quality?

Great, so AdExchanger is okay with defining ad quality by the size of the ads:

Youtube: it’s difficult to argue with YouTube’s ad quality, as the site’s highly engaging oversized Masthead ad unit sold 91% of the days in 4Q’12

Yahoo: oversized/custom ad units rose on a year-over-year basis to 36% of total homepage ads

AOL: Sales of oversized/custom ad units were up substantially from both the prior year to 52%

Amazon: Schachter is bullish on Amazon’s display plans. He pointed to a “meaningful increase” in oversized/custom units

via AOL, Yahoo Homepage Ad Quality Rises — But So Do The Challenges.