I can't agree with you on this one. I think you're guilty of believing intuitive means "what I'm used to". We all are to one degree or another, which is why I made a point of mentioning my many years of using GIMP vs. being a beginner with Photoshop. Nonetheless, the learning curve in Photoshop is very steep; I believe steeper and longer than GIMP. Yes, it's definitely a more powerful tool, which is why I bought CS4 recently despite being comfortable with GIMP/Inkscape and able to product most things I've ever needed to produce with just a few minutes of effort (except ai and psd files). But, nonetheless, even just doing basic image editing tasks, Photoshop is pretty hard to use.

I think the only real conclusion we can come to is that complex software is hard to use for beginners.

I used GIMP and several generations of Microsoft products (my family had a MSDN subscription) before I figured out Photoshop at all, and the difference is night and dusk (PS is no usability king either, just not dogshit). There's tons of opportunities for improvement over PS, but GIMP takes none of them and instead does a bunch of stupid MDI shit.

Interestingly, I find the opposite holds true for Illustrator/Inkscape -- I am baffled by Illustrator, and have never met someone (even digital art faculty) who could really wrap their head around it, much less show me the way. It's CAD-tool bad! Inkscape is awesome, and not just compared to AI (though for the first several years it was ridiculously unstable).