I will have to say, what works best for the individual.
I find this to be true in a lot of things I do.
I have read in several bee keeping books, theres no wrong way, theres no right way, there is the way that works for the individual.
I know this is not so in some parts of bee keeping, Like how to release the queen. you can't just open the hive up and put her in there loose.
I find it very hard to keep my bees from increasing to the point of swarming using only one deep during build-up and flow season. I see how it is OK for one coming through the winter with only one box.
But when they start rearing brood, they bust out all over.
Remember in another post some where, I said I used 3 deep on the swarm I got the last week of March.
This was for brood.
Have got two boxes of honey off it and there is 2 and1/2 left on it. They're not through yet.
Got two off the colony it came from and it has two more on it.
In my 7 yrs of Beekeeping, This is the best year I have had.
I do not migrate.