The thing is it squeaked before I did any work and still squeaks now. Finding the uneven wear lead me to believe the squeak was caused by one caliper sticking, but after replacing all rear components plus the flex hose on the offending wheel the squeak is still present and I'm not so sure. I've lived with the squeak for two years or so at this point so I suppose I'll monitor the pads and see if they continue to wear unevenly.
I've generally had good luck with mass market parts on my jap cars. I'll buy from the dealer for certain stuff, engine internals, certain gaskets, Honda's special tranny fluid because it's not the same as ATF, etc. But brakes I'm comfortable buying mass market. I bought the car at six years old so I'm not sure if what was on there was OEM, but the noise started about four years into my ownership and the uneven wear is only apparent now.
From here I'm just going to run it, see if I get uneven wear and go from there. There's a guy at my church who works for Honda training dealer technicians, I may pick his brain too if I can get a moment with him tomorrow. Thanks for all the insight, gentlemen!
Silly question but have you consulted with the Honda forums? Usually with late model Japanese cars every little thing has been experienced and well documented at this point. For my Landcruiser the corresponding forums are pretty much an endless encyclopedia for every single thing and inch of the car possible.