Originally Posted by HansTWN
So count B&N's sales as standard epubs. Even then the combined sales of standard epub books don't necessarily outpace Amazon's. You have no sales figures that show that, and it seems very unlikely.
Forgetting sales figures which nobody has to be definitive. We have more stores selling ePub, more readers able to handle ePub, we have more countries where we know ePub reins supreme. So it's fairly obvious that when you don't just mention the USA, that ePub has to be #1.