ANOTHER THING!
A great example on the wild about how paneling affects the storytelling is The Death of Superman storyline. Yep, it may not be the greatest storytelling out there, but it has a punch that its hardly equalled. Now, that series has a lot of numbers, but what I refer to are Adventures of Superman v1 #497, Action Comics v1 #684, Superman - The Man of Steel v1 #19, and Superman v2 #75, in that order. In the first one every page have 4 panels always. On the second, always 3 panels. On the next one 2 panels per page. And the last one just one splash page per page, and at the end even some double splash pages. Why was that? Because it was a count down, to the final number, that it was the death of Superman at the hands of Doomsday. Imagine yourself reading that for the first time, you didn't knew that Supes was gonna die, and the tension just keep going up, heroes keep going down, and nothing stops Doomsday, and in the final number, he dies. You weren't prepared for that. Nobody was, that's why it was a world event like no other.
Check those comics, it would be a nice study!