Well I always thought the best way to tell a good B\W shots is that it should have all the tones from black to white i.e. shades of grey...of course it's only a guide as some people prefer soot and whitewash etc
The 2nd looks clearer but the 1st could be changed in Photoshop and any shadow detail wanted in either could be enhanced...so difficult to judge when you consider what photoshop can do.
AAMOI in "cheating" Andreas Gursky's shot the Rhiene, that sold for $4 million ( erm in my opinion ????) not only broke the rule of thirds but even removed walkers and a factory in the shot so anything goes.