A tricky question, you know, CMS systems are nothingmore in my opinion that a good start to do your own thing, a very bad idea is to download PHPNuke™ for example, unzip it and say, come on all i have aniceportal system, this is awful because we all can, and there are already hundreds of such junky sites around .

CMS systems are meant to be a simple core system for an engine you do to distribute your content the way you like, or more accurate, the way it must be presented .

I Will Even Discuss A Simple Example, saying that this site is a re-built version of some CMSout there, here is what i say about it ...
1- Rich In Content
2- No Unique Design, The Same Blocks Idea...
3- Many Nice, Yet Confusing Options And Customizations
4- Many Own Ideas Implemented
5- Still Makes Use Of Some Old Tech's
6- Misses For Example An WML Login Interface
For Users To Be Able To Check At Least Account
Status And Private Messages
7- Violates Many Netiquete Rules

This never means that this is a bad site, no, this just means that a good webmaster will NEVER say that he managed to come with a final version ofhis website, this is an Impossible .

CMS systems once again are the first steps to have your own engine capable of delivering content in different ways for people with different needs, and in general, users get attracted by monthly contests, community activities, options and customization abilities .

Related Links :
Web Design Etiquete (philosophy)

Well, That's All For Now, Maybe later.... cya .