While using both version you would come to know there are lots of differences in both the version of the Magento.  Magento 1.9 is having large community base and having huge of number of extension supported in Magento Connect. It makes rich version from any version of magento.

Magento 2.0 is having completely new structure and based on App Structure. In which file access is very easy. It is having Magento UI library that give advance feature to its front end of the website. Key features that it provides are as : focussed on web standards, Customization, responsive design and easy access of files. Built on latest version of PHP and MYSQL so all the latest feature of HTML5 and CSS3 is included into this.

If you are UI lover and looking for great theme with lots of great feature in your website then magento 2 is best solution for you. From end user point of view it is very easy to understand and do changes in your website.

Magento 1.9 is bit confusing for end users but it is great for Magento community developers due to many feature in this version of the website.

As Ecommerce development team in india we have found Magento 2.0 is great version but if you are familiar with earlier version then stay with earlier version. Our website development team would help you in any kind of your query.