yeah, yeah, I know it's old fashioned by now, but for me it's still the photo editor of choice for ease of use, and intuitiveness. Corel and Adobe are good, I can't disagree, but Ive tried them both and find I spend most of my time trying to figure out how, rather than actually playing with the pictures.
I use it mostly for sharpening up images that need a bit of contrast or darkening, for making graphics for backgrounds, and lettering.
In other words, it suits my needs, and isnt overloaded with features I'll never use anyway.
What's your favorite photo editor and why?
ACDSee Photo Editor
Adobe PhotoShop
Adobe Photoshop Elements
Corel Paint Shop Pro
FastStone Image Viewer
The GIMP
IrfanView
Picasa
Ulead PhotoImpact
Other (what is it?)

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic