I believe that Tinkercad is not only the best & easiest 3D modeling software, but what I love most is that you do not need any (or at least a lot) of preparation to make your 3D model printable. For most 3D modeling programs this is a complicated and time consuming process. For Tinkercad it's just so simple.
I just love Tinkercad! So I just wanted to let you know that I worked on my first Tinkercad tutorial for beginners. Feel free to take a look at it here: https://i.materialise.com/blog/tinkercad-3d-printing-tutorial and let me know what you think of it. Thanks!
3D Printing Tutorial