STL or Qt containers?

Question

What are the pros and cons of using Qt containers (QMap, QVector, etc.) over their STL equivalent?

I can see one reason to prefer Qt:

Answer 1

If the data you are working with is mostly used to drive the Qt based UI, then definitely use Qt containers.

If the data is mostly used internally in the app, and you're never likely to port away from Qt, then barring performance issues, use the Qt containers because it will make the bits of data that go to the UI easier to deal with.

If the data is mostly used in conjunction with other libraries that only know about STL containers, then use STL containers. If you have this situation you're in trouble no matter what because you're going to do a lot of porting back and forth between container types no matter what you do.