I think both HoHF: Dwarves and H&H are great books, but they're primarily player's guides with new uses for skills, PrCs, feats, and equipment. Hammer & Helm does have a fun interesting section at the beginning that discusses how to adapt dwarves to different environments and makes suggestions on how altering the favored class of the dwarves also alters their outlook and society (such as changing the favored class to Paladin for a particular group or to barbarian for a different group). The info is interesting and does generate some good ideas but it's only about 2 pages.
I seem to recall that the old 2E Complete Dwarves Handbook had a bunch of that kind of info in there but you mentioned that you don't like that one, so I'm not sure exactly what you're looking for.
Edit: Typos
