I have a 75 BD, PCR & P-01. I like shooting them all but the full size is my target gun and zeros in better. The compacts are in my carry rotation along with the RAMI & P-07. The 75 BD is fully Cajunized (springs, hammer, firing pin short reset and 85C trigger)while the compacts are only partial (springs, firing pin, hammer). Oh the PCR has an 85C trigger also. I have never shot the all steel compact, but like you, I want the decocker.
The sights are about the same on all three, small. I'm 59 and wear glasses, so I see the sights without any problem. The only differences between the PCR & P-01 are the rail and the sight radius is a bit longer on the P-01. When it comes to the compacts, I like the look of the PCR better but I guess they shoot the same to me.