There are several methods to create a black and white image.
This images in this gallery were created from the original color jpeg by using various post-processing techniques in Photoshop.
Some are definitely better than others. Some have very subtle differences.
The methods are labeled on my hard drive, but removed from this gallery to see if viewers can guess which goes with which image :-)
Which do you prefer and why?
OOps. Didn't read the blurb on the main gallery here. Well many seem pretty similar actually but I kind of like A and B. D is nice but seems very different from the bunch because it is not totally monochrome. Is that the one which uses the adjustment layer in PSD that you scaled back a little? Makes for an old-fashioned sort of image, like something out of your grandmother's photo album. You should probably now label what methods you used for each of these. Could be a valuable guide for monochrome conversion.