Auto tune 4 vs. Pitch Doctor vs. PurePitch ect...

[thin ice]

I'm quite happy with Autotune. With any of these pieces of software it's understanding how it works. I never found a vocal can't deal with. Of course I thought that way after limited usage, but experience with AT makes you understand what to do in a given situation. Sometimes with difficult vocals it is better to do a little work with pitch n time before applying AT of pitch doctor.

The one thing I can't understand is why someone would run intonation plugs live. Surely AS and checking as you go is the only way for professional results. Applying the right key or in some cases seeing people running chromatic live on a mix looks somewhat hopeful!