I also am a Vbulletin owner (obviously) and enthusiast, but I wouldn't call it a CMS system at all and would not want newbies to think it was. IMO it's the best forum software and the new suite offers lots of other features on top of the core forum capabilities, but I don't think most people would call it a CMS. If someone does not want a forum, they just want to build a regular site or blog I would not recommend Vbull as a CMS.
I agree the easiest, best, cheapest (free) CMS is Wordpress.
I agree the easiest, best, cheapest (free) CMS is Wordpress.