After nine year of using C++ Builder and one year of learning Qt Creator I have written a comparison article:
http://richelbilderbeek.nl/CppCompareCppBuilderAndQtCreator.htm . In it I conclude that I had found C++ Builder easier to learn, but that Qt Creator is the way to go. I hope my website will contribute to beginning programmers to understand Qt Creator.
Looking forward to your comments, Bilderbikkel