Of course some stories are better than others, but it's Sherlock Holmes. Classic and so fun. Here are my favorites:

The Speckled Band
The Copper Beeches
The Musgrave Ritual
The Greek Interpreter
The Dancing Men
The Solitary Cyclist
The Priory School
The Abbey Grange
The Hound of the Baskervilles
The Dying Detective
The Disappearance of Lady Frances Carfax
The Devil's Foot