title: Installing Qt 5.6: Which components should I choose?
body: <p>I'm planning to start learning Qt (I have no previous knowledge) so I've downloaded the latest stable web installer for Windows and Linux (I've got to machines), following the directions of the Windows's wizard I got to the "Select Components" step but I'm very confused about what is everything and what do I really need.</p>
  
  <p>As a newbie and with a very basic Knowledge of Qt my plan is to test my code on Windows and Linux for both Desktop Console Software and Desktop Graphics Interface Software, AFAIK I need to build my code with a cross-platform compiler like G++ which runs on Windows and Linux, so I think that is why Qt offers the installation of MinGW, but looking in the list of available components of the installer I can not fully understand which MinGW version should I choose, this is the list for Qt 5.6 installer:</p>
  
  <p><a href="https://i.stack.imgur.com/c9i6v.png" rel="noreferrer"><img src="https://i.stack.imgur.com/c9i6v.png" alt="enter image description here"></a></p>
  
  <p>There are two options for MinGW 4.9.2, Could you help to understand what is the difference? I must install both?</p>
  
  <p>Another question I got is: What is the most preferred way to create UI Software using current version of Qt, Qt Widgets or Qt Quick? </p>