I have slowly run out of space to store my Star Wars purchases, so I have had to severely restrict my diet to 3 3/4 figures and the titanium mini vehicles.
However, I will say that of all the vehicles I do own, and I own quite a few, that the AAT is by far, my favorite.
I am a stickler for movie accuracy and unobstrusive "action" features on my vehicles, and the original TPM AAT delivers.
For purely asthetic reasons, I prefer the paint deco of the TPM version over the TAC version. They are both cool, but TPM tank is shown very prominietly in that film.
Just my thoughts!