You would actually consider to manually install (any of those CMS's, if you search on this forum you will see the reasons why). Anyway my preferred is Wordpress even tho Joomla is getting loads of good words.
Just do a search before you chose to use any of them.
Tho, isn't this the wrong topic for this question?
Wordpress is a blogging software but has some nice functions. What kind of website would you like to do? tell us first it will help.
Otherwise for CMS I recommend joomla for its community and drupal for its simplicity. You can check at opensourcesCMS to test all of these
If your going to have blocks of text with links etc. here and there, you'd be better off with Joomla. You can do it in Wordpress but you have mess with code and stuff. But for blogging? I use WP all the way. Mambo right now has very little support since Joomla broke off from them. Typo 3 has a steep learning curve and Geeklog is configured kind of strange. IMO only.
If you know your way around computers and you take the time to follow Joomla's User guide, you should be able to find your way around it. Gaining knowledge takes time and effort, there's no real way around it... yet.
The company I work for has decided to push joomla as our main CMS solution. So far it's been going great, no problems and all our customers seem to enjoy it. Granted we have someone in house that does training sessions over the phone or goes out to their office to train them but I think it's a solid CMS and I have no problem recommending it to anyone who needs a CMS.
On that note, since you have fantastico why not just give them the option of all of those and let them decide? No point in limiting your users if you have the ability to provide all of these with little hassle.