Acoustic sounds on a POD? Are you talking about running an acoustic through the POD, because the POD has no acoustic simulator. And, I'm going to have to dissagree with you 1000 times over about the tones from the POD. I can get any tone I want from my PODxt. I think you must not understand how to tweak the POD if you can't get great tones out of it.
I'm not trying to start a fight, just stating my opinion (and fact about the acoustic thing).