I'm craving for adobe photoshop before and many people knew that. I'm so glad coz I have adobe photoshop cs2 and now I can make graphics and animations better than before. At first I was using paint.net then I switched to gimp and finally I'm now using photoshop. Photoshop is really the best program I think.

-Photoshop can make brushes in different sizes
-Paint.net don't have brushes so imagepacks are used
-Gimp has brushes but can't be resized immediately

And many more..