this is not another Nasser vs. Dorian thread.. I am just comparing Nasser to Dorian here because Dorian is always referred to as the thickest from the side!..
I honestly have no idea how you cannot see that those two are at different angles to the camera, and still compare them with pixel measurement. Look at the abs. Since Dorian is more purely on his side you can expect the difference to shrink and perhaps come in Dorians favour if Nassers turns to the same position.
Not that I really care, I'm not a fan of either them. Just pointing out yet another comparison based on faulty logic (albeit not quite as bad as posting pictures of wolf vs 5ft 8 bodybuilders with both being the same height in the side by side comparison).