I was doing an IMDb advanced search for highest rated horror movies of 1939 - 1946. The top 5 films were unexpected. Below is a screenshot I took of the results.
The high rating for IF A BODY MEETS A BODY shocks me and I also have to say Stooge shorts have a few hundred ratings versus the thousands of more regularly thought of horror films. That said, in this case, Looney Toons and Stooges top the list.