asprince, 2 hives with 1 box, compared to 1 hives with 2 boxes does not produce more honey. Yes, it produces more brood, and if you stack another box on top of that one, it will produce 2x more honey. However just the one box will be used primarily as a brood chamber the entire life of the colony until the colony determines it wants to swarm.
I use 2 large brood chambers and 1 large honey super per colony.
When I winter, i take off the honey super, and leave with 1 honey super.
If i have trouble with the queen laying in the honey super, I simply put a queen excluder in between them.
I fill up a super quite quickly, and with 2 large brood chambers I have the ability to split 3 to 4 times a summer due to the ability of the large brood chambers to regenerate fast.
My 2 cents.