Magento is used by over 250,000 businesses worldwide. The primary function of Magento is to build a site for selling numerous products online. whereas, primarily aimed at blogging and other CDN Content delivery Network sites. Over 60 million websites are powered by WordPress. WordPress is considered to be very user friendly, with a huge range of plug-ins and templates.
Magento and Wordpress are two of the most popular Content Management Systems(CMSs) used worldwide. Having worked on both the systems I can doubtlessly say that Wordpress is the most ‘easy to use’ platform you will find. Compared to Magento it is fairly easier to learn, understand and customize but yet if you ask me I would recommend you Magento only because you are specifically asking for an e-commerce website.