Choosing between Joomla, WordPress or any other CMS is quite easy. However it needs a brief discussion with your developer. If once you are making a site with one CMS and in future you need to add some more applications, then you may need to migrate the whole site from one CMS to another CMS. And if you have larger number of pages then this task going to be more tougher. It might cost you more then.
So it is better to know and discuss about your needs from very first. It depends on your requirements.
If you have so many applications to add on your site, then Joomla CMS is best for you. Joomla is more flexible. We can add more features/applications in future(Like shopping cart, social networking application, job listing application etc).
Our Joomla service includes: