What are the best and most Linux distributions easier for the user and take actions in the most efficient tasks?

Ubuntu is simple and easier.

This is an easy choice: Bodhi Linux. Bodhi Linux uses the Enlightenment window manager, which has always occupied a unique niche. Enlightenment is beautiful, lightweight, and extremely customizable. Its flexibility has worked against it in the past, because when you install the stock Enlightenment it takes a fair bit of work to set it up as it's more of a framework than a finished desktop environment. The Bodhi team have done a great job of taming Enlightenment and giving users a beautiful, ready-to-use implementation