I have just lately got back into playing my electric guitars. I went on a 3+ year bender of ONLY playing my acoustics. I did a lot of experimenting with strings and gauges on my acoustics. My conclusion was that most bigger body acoustics(dreadnoughts) thrive with 13s and most smaller body acoustics (small jumbos and OMs) like 12s. But there are some exceptions.... and thus the reason for this reply. I have a beautiful 1957 J-200 Reissue acoustic that you would think based on it's large size would love heavier (13s) strings. But I read many acoustic forums that the heavier strings can "choke" the top and sacrifice tone on a J-200. Well, I didn't believe it until I tried it. Heavier strings (13s) took all the projection and life out of the J-200, so I immediately put 12s back on.
So I think string gauges and even brands, can vary from guitar to guitar based on the design and the brand producing the guitar.