I haven't had a chance to play the 322ce yet. As it's so new I haven't found it in any of the local shops around me. I have played the 00-15E. The tone was surprisingly not as woody or mellow as I've came to expect from all mahogany martin guitar. Overall thought I lean on the martin tone, especially for mahogany.
Might I suggest you also check out the jeff tweedy model?
https://www.martinguitar.com/guitars...b-jeff-tweedy/
You might find that it would be right up your alley, however if you are haven't issues checking out your previous two mentioned model, this one might be even harder to find.