There's an easy test for any of you as an individual to decide this question:
If you could have one and one only for now and forevermore to serve every possible handgun purpose; between the two, which would you choose?
Although I believe I'd rather have a truly indestructable 686: indestructable 686??? t'aint so, McGee. In a heartbeat, I'd pick the Black Hawk as the one to ride the river with: built like an anvil, fewer parts, easier to work on, etc.
About 10 years ago I delevoped arthritis in my thumbs. The lower Bisley hammers helped with that, but I eventually started carrying S&W DAs in the desert. Since then, I have great respect and admiration for those revolvers. They've never failed me, but for strength and reliability I don't believe they hold a candle to a SA Ruger.
YMMV