Photography (10000 programs)
Pros: Intuitive user interface. Hundreds of photo effects. Infinite undo/redo function. Lots of customizable settings.
Cons: Almost half of the options are only available in the premium version. Often freezes whenever you try to apply image effect.
Pros: A sophisticated filter and template system is used. Change your pictures by choosing an artistic style used by a master.
Cons: Not as free as it seems. You have to pay for larger sizes if you wish to print the image off.