After I completed my earlier review of Capture On Pro 6 in a black and white conversion test with Silver Efex Pro, I had some feedback from several people who asked me to add Lightroom 3 into the mix to see how converting the same RAW file would work out by comparison with the other two approaches. So, I did that, and the article can be found in my software reviews here. It was a very interesting exercise, with a few surprises. Well worth a read.
Here is the final result from Lightroom:-
To read the detail, review my findings and see the resulting images from the other two environments;
Please let me know which result you preferred.