I seem to have a post like this one every time I get tired of switching distributions, especially ones that do not work as planned.
Ubuntu works for me, and it has full support for my laptop in a user-friendly format. Using other distributions, with the exception of a mere few, is almost impossible for me. My laptop uses the Broadcom 4318 54g Air Force One wireless card. Ubuntu provides support for this driver via the “Restricted Manager”. I also have an ATI Radeon XPress graphics card, which can also make KDE act slow.
As of now, I have to say that my favourite distributions are Ubuntu and PCLinuxOS. It is surprising to find that I originally did not like PCLOS, but as I became more experienced, I understood it better (a result of coming from Ubuntu), and not to mention, it supported my laptop perfectly with the simple addition of several drivers.
So, for now I am back in my comfortable home system, Ubuntu.