Ah, yes, asking users is so tedious. My favorite response to this thread was early one when an apparent developer explained that Evernote selects the image with the "biggest smallest dimension." HAHAHAHA. I plan to use that as a fantastic example of exceptionally poor human design. The analogy for bad machine programming would be writing code instructing the system to select the "coolest image."
This is a seriously overdue fix and a big design limitation. People have been complaining about this topic on this thread since 2011. What is taking Evernote so long? How complex can this be?