I have to say, Plan 9 from Outer Space is not the worst movie and Ed Wood is certainly not the worst director. For those interested in genuinely bad movies, I suggest a show called MST3K,
http://www.imdb.com/title/tt0094517/
Indeed, Ed Wood is just a less talented individual. Watch Red Zone Cuba by Coleman Francis and you'll agree. I've seen three Ed Wood movies and three Coleman Francis movies and I have to say, whatever status Ed Wood has, Coleman goes way beyond.