Try to create a huge terrain in both engines! You will see the difference easily. As many other said: the tool-set makes the difference.

Another interesting tool is the good material / shader editor.

But I understand the point of view of experienced users. If you know a certain tool-set very good then it always looks better than any other tool, you are faster and more comfortable in your home-application.
I have the same feeling when I check new modelling tools like Modo. I know for sure they do faster and better modelling than my Lightwave but I am used to LW and I am fast.

Learning takes some time. But often it is worth it in the end.