Let's begin from the premise that you as a well established developer, know what a CMS is, so I won't lecture you on what one is because I'm sure you know a few, love one or loathe another, that's why I'll get straight to the point. In all my years as a developer I've had my way around a few CMS's (Haven't we all?), hell I even tried building one myself (Disclaimer: It's still in development!), but some time ago I started asking myself what makes a good CMS? I know, I have weird hobbies, others think about pudding or...