This line of toys was, hands down, one of my favorites as a young monster kid. Though they came out in 1980, they managed to stay on shelves long enough for me to get them all a few years later. They were the first monster toys I had based on real movie monsters. I found that very exciting.
The Creature and the Wolfman were my favorites of the line, also being my favorite monsters. Oddly, I had both versions of the Creature and they BOTH fell apart. Not broke, fell apart. Still have the Wolfman though, and he is in mint shape.
Extra special thanks to The Gallery of Monster Toys for the images. Head over there right now and spend all day looking at the best monster toy site on the net.