It looked like there was an interesting article in The Economist a short while ago. In their Science and Technology department the (unnamed) correspondent asks Which is better: analogue or digital?. It is full of good technical stuff like hysteresis and second harmonic distortion. Unfortunately it is apparent in the first paragraph that he has no idea what he is talking about.
…do audio amplifiers and microphones with old-fashioned thermionic valves (“vacuum tubes” to Americans) inherently produce a sound more natural and satisfying than those with transistors and other solid-state devices?
This is not Analogue vs. Digital but Valve vs. Transistor, a completely different and unrelated beast.