Why would anyone want class AB amp when class A always sounds better ?

Reading all of the responses from a simpleton’s point of view is very interesting. But the ultimate measure for any piece of hardware is the one thing that’s totally unique for each person. How their complex inner ear relays information into the brain, which works out what’s pleasing to the listener. Not to mention the endless variables that change our hearing over time. You can’t tell someone there wrong when you don’t have their ear and brain.  Never mind the biases we have from where and when we were raised  

What’s the best amp made?  It’s the one I have.  

You may fire when ready