For now, the leading position on the market belongs to WooCommerce. Magento is the second winner. After a long struggle with Magento, WooCommerce managed to defeat and take the first winning place. The possible reason why WooCommerce is the ultimate winner is the fact that this platform is free of charge. It significantly succeeds all other ecommerce solutions by the number of installations.
The other popular ecommerce platforms for 2017 are Oracle ATG Commerce, Shopify, Demandware, IBM Web Sphere, Hybris, Klosked, osCommerce, Ubercart, and etc.