I like to recommend PCLinuxOS KDE for people new to Linux, so they are still using a familiar environment like Windows. I've played around with Ubuntu since Version4 came out, had it installed for awhile and changed to newer versions. The new one is quite an improvement, but there are quirks I really don't like. I like PCLinuxOS KDE, but the new KDE just isn't quite where it needs to be, there is simply too much missing.
I have 250 Linux CDs in my closet and have tried and ran everyone of them on different computer systems. Probably only six of those I would consider using on a computer. The biggest issue I have with Linux is repositories disappearing, simply because some computers can not run newer Linux versions. I am currently running the new Ubuntu, but not sure I will even keep it installed. I guess that is what Linux is all about, choices.
If Linux ever wants to take the market by storm, they need to consider creating software similar to what MAC creates, without crossing copyright infringement. I already know there is commercial software available. Don't get me wrong, I love Linux and don't want to be a Microsoft Hostage, but I do dual boot, so I have the best of both systems.