I have little more to say about Before Watchmen as a concept that I haven't said already. So I guess all there is to write about is the work itself.
Brian Azzarello and Lee Bermejo's Rorschach is a great looking book about a street-level vigilante who isn't necessarily that smart, or strong, or that great a fighter, but he's tough and tenacious and angry. This is a story that could be any character (Wild Dog, Vigilante, Moon Knight, Punisher, X etc), it doesn't have to be Rorschach. It doesn't hurt that it is, but it also doesn't add much. He feels adequately familiar but but it's such a quick, frivolous read that beyond Bermejo's stunningly grimy visuals it's hard to connect with or feel the purpose of the series. It doesn't feel like a story anyone was really itching to tell, it feels like a story that was created for the opportunity that presented itself. Unlike Dr. Manhattan, the set up for this arc doesn't instill any desire to continue reading. The epitome of inessential.