I do like PTGUI (Panorama Tools Graphic User Interface). It may have one of the most awfully designed and overrun commercial website I can think of, there is no other option for me when it comes to stitching pictures. Perhaps – and for the good of all of us photographers – the people at “New House Internet Services B.V.” (PTGUI’s developers and distributors) prefer to spend their time on improving their product.
Most DSLR comes bundled (among lots of other – usually useless – software) with their stitching software. Hence many photographers being happy with them – or managing it with Photoshop CSx functions – do not know PTGUI. I am not able to change that situation; but if you do not know it yet, let me introduce you to the power of this little wonder.