Is Qt Creator a replacement for Visual Studio?
Qt Creator is not a Visual Studio replacement, but instead a lightweight IDE designed specifically for cross-platform Qt development. We developed Qt Creator to provide our users with options. If a developer is comfortable with Visual Studio, we highly encourage them to continue using it. We will certainly continue to develop and improve our Visual Studio integration
What compilers and debuggers does it support?
Right now, Qt Creator fully supports the GNU compiler (gcc) and debugger (gdb). It is also possible to use the Microsoft Visual Studio compiler to build projects. However, it is not possible to debug binaries created with the Microsoft Visual Studio compiler in Qt Creator, but it is on our feature list for future versions.