Opencart vs WooCommerce: Which one is best?

It depends on your needs. If you would like to have a complete feature-rich website that operates as a complex online business with multiple departments.

WooCommerce is far better than Opencart because it has multiple options and free resources available in the community.

Also, it has an easy-to-use backend which is applicable for non-developers. You should not write code or be HTML-savvy. As for me, I rule my business and use an automated interface which, I must say, is a great assistant. Try it for yourself.