My favorite spoof movie is surprisingly Hot Shots! Part Deux, just for how absurd it can get. I still love the gag with Martin Sheen when he and Charlie point at each other and say "I loved you on Wall Street". Still, I wish that more films would play with the language of film like Top Secret! It's so fun to watch. The only thing that really comes close is the French film Playtime which is basically a cinematic Where's Waldo? book. Truly the only film with any replay value.
Honestly, my favorite spoof movie might be Weird: The Al Yankovic story for it's spoofage of the typical biopic cliches and hilarious exaggerations of Al's life story.
Not a spoof movie, but a A Touch of Cloth was a British show that spoofed a lot of British cop shows like Silent Witness, Cracker, Luther, Prime Suspect, Midsummer Murders, Inspector Morse, Lewis. It was written by Charlie Brooker, the guy who did Black Mirror, and it is joke-a-minute.
It's not my favorite by a long shot, but Jane Austen's Mafia! deserves more love than it gets. A lot of the jokes don't land, but plenty of them are hilarious. And you can tell they respected the genre they were spoofing, unlike a lot of later films that basically destroyed spoofs.
