The AVclub today put out their review of Abbott And Costello Meet Frankenstein.

Which I'm linking to just out of pure nostalgia.

During my phase when I was working my way through classic horror films, this was one of my favourites. Mostly for the same reason the review cites.

It works remarkably well. Plus it was one of only 3 movies in which all 3 Universal monsters (Frankenstein, Dracula, and the Wolfman) got to share the same screen. (House of Frankenstein and House of Dracula being the other two).

And it also brings back the original actors for the Monsters (Glenn Strange wasn't the original original Frankenstein, but he had played the monster before in previous movies. Bela Lugosi and Lon Chaney Jr. are the pure originals.)