In search of the best Linux distro of 2012: My Experiments

Jan 2013: Please also visit my updated experiments with the major distros released in 2012

Best KDE Distro 2012 with 16 leading KDE distros
Best XFCE Distro 2012 with 15 leading XFCE distros

My Old Experiment: 

I recall in 2009, I had only a desktop for all my computing needs - a desktop bought in 2003 and post SP3 update, struggled to run Windows XP, plagued with virus problems,