I have both. I have carried the RAMI BD every day, all day in an Alien Gear Cloak Tuck III for at least 4 years. I have over 20,000 rounds through it and still going strong. Broke a trigger return spring at about 10k rounds and ended up getting the CGW defensive package for it while it was apart. Made a good gun better.
The PCR I hardly shoot, but when I do I really like the feel of the grips over the RAMI, but that comes at a cost of harder to conceal. It's just a little bigger than RAMI in every way (although it feels lighter) so it is harder for me to conceal. If I carried open I might use the PCR, but for now RAMI is my preference.
I bought the PCR because I looked forever for another RAMI BD for a backup in case my main carry was down again, The RAMI BDs I found seemed to all start at $600 (+shipping and transfer fees to get it here). Closing night of a gun show last month I wandered around one last time and there sat a "used" (no signs of ever being fired) 2009 RAMI BD for $399. Needless to say, it went home with me. I need to put the carry package and short reset on it to make them match, but pretty pleased to have a proper backup now.
Accuracy all depends on the ammunition. PCR likes one load, RAMI likes another. Both are tack drivers when you find what they prefer.