This is an interesting list but if you like Dio, it's because of his unique voice which was at its best on Lock up the Wolves. The album was a departure from what he had previously done with an all-new band which made it a bit difficult to get into at the time. It just happened to be a bad time for metal. I suspect that if you gave it another listen, you might want to rank it higher. I would definitely rank it above Master of the Moon, which is an album I like quite a bit.