Regarding AT, have you tried it on a track with a signature other than 4/4? How about tempo changes? How does it work?
I have the Melodyne plug-in and the stand-alone. If all I want to do is center some slightly off-center notes or correct the timing, it works great. But, if (like was mentioned above) you want to shift a pitch a couple of whole steps, the sound can get kinda "nasally" (if that's a word).
Anyway, I'll have to check out AT.
I did this..
WelcomeHome
.. with Melodyne on the (muted) trumpet. But as you'll hear, there are some places where the sound can be kinda "nasally" (and these were just centering pitches - not moving whole steps or anything like that - just general correction). I think the muted sound of the trumpet accentuates that effect. On normal trumpet (not muted) parts and vocals Melodyne does a much better job.
Also, generally, the workflow of Melodyne is really simple. How is the workflow of AT? What's the process? Actually, I really like the built-in pitch correction for Logic. Logic doesn't have the timing adjustments that are necessary sometimes; so I kinda default to Melodyne. And no, I don't want to change all of my clips to Apple Loops - it's a horrible workflow.
Have you tried AT on trumpet parts? Does it also have time correction (along with pitch correction)?
Ohhh, one other thing, I can't stand that the Melodyne plug-in window is not resizable.