Do all gui toolkits suck?

After messing around with wxwidgets, qt, and gtk+, I'm under this impression. Do they all suck or am I just not reading the docs correctly

Cocoa is absolutely the way to go. If you understand the basic design of the Framework, it is easy to find things you need.  The api is intelligent, simple and consistent.

The other great point is, that under OS X (Mac and Iphone) there are good complete guidelines, that tell you how your Gui should look and behave.

That is the reason for 90% of all things you do on a computer, are faster, easier and more elegant to do on mac os x!