It's more than just choosing a quality fluid. More importantly, it should be the right type.
It's been discussed in numerous forums that Honda's AT transmissions and hydraulic power steering systems are picky. On PSF, people say that Hondas operate their power steering at a very high pressure (
http://hondacivicstation.org/part-ho...id-550002.html) and using a fluid that's not designed for it will cause seals to break, among others.
As for AT. Honda's AT uses sliding gears on parallel axes and is very similar in operation to a MT. On the other hand, most conventional AT use planetary gears. (link:
Automatic transmission - Wikipedia, the free encyclopedia)
I won't deny the fact that there will be compatible fluids out there that will work with Hondas. However, it's going to be a hit or miss. A lot of people have used "compatible with Honda" fluids that ends up with a horror story. For a lot, taking a chance is out of the question. AT or PS repair is so expensive while the Honda fluids reatively inexpensive that it's almost a no-brainer to just use the right stuff.
Consider that you're only going to replace these fluids every couple of years. What's wrong with spending a few more hundred bucks for peace of mind?