I've used ptGUI before and it works well but rarely, but when it does, it supports huge file formats really well.
Panorama Factory has better positioning and skewing algorithms and gives great results.
No tripod, bad lighting and at 18mm with my Nikon D300 and it still churns out a beautiful panorama. Unfortunately, its max picture size is limited to your ram size (idiots!).
So basically, that means....pictures aren't even print-worthy that come out. I could tweak the pictures, but that would take hundred of hours due to the exponential complexity of the control points. ptGui doesnt like my 18-200 VR lens, nor my 18-135.
I need a program with Panorama Factory algorithm quality but with ptGUI memory management capability.
Any suggestions ?