Photoshop is the industry standard... I went through all this years ago, Photogenics comes the closest.
The one thing the Amiga does great is fixed screen size animation in 2d. So if you want to do pencil testing for animation the Amiga makes it super easy. Doing the Deluxe paint or brilliance style animations on the PCare a pain in even Photoshop CS3. Aura from Newtek emualtes the Amiga way of working since it's based on TVapint.
For one project I actually needed a hand drawn graphitti look so I did it in Dpaint and loaded the frames into after effects. All on a PC running UAE of course...
Worked out GREAT!
