My buddy (@JikissGamer on twitter) made a great map by map review of Bloodstain, he's been really enthusiastic about PWADS for the last couple of years, and has become pretty knowledgeable on the topic, and has a genuine love for old school Doom.
He does a small review and walkthrough for every map in the WAD them rates them in order of quality as he sees them. I know he worked his ass off on this project, and it turned out really well. All the footage was captured on period hardware at 300x200, because that's how he plays Doom ;)
Check it out if you folks get the chance, he could use the views and would probably not post it here himself. Thanks.