Joomla is winning , also joomla 1.5 is looking really promising, uses a lot less server cpu and the cache system has been developped a lot. I can't wait !
I have been working with a Joomla install for a week now. The server refresh and admin interface could get really touch and go. Also I am running into serious code problems and errors inside the admin level. That's not good.
I use mostly Joomla for my sites. However, when making simple sites ( just information ) I prefer using Drupal as it is easier to setup.
Actually you test first all the free CMS available on the internet in this website. http://www.opensourcecms.com/ dont worry if you mess up with the administrator setting becoz it will automatically deleted and install after a limit of time Check out this : xt3ch.com/portal