dual given as a CFI or CFII or MEI is great time. I learned more about flying from teaching than anything else.
I made my students go into real wx for instrument time.
I remember that C. Lindbergh said you don't know how to fly till you teach it!
The guy was right...if you stalled with a student (on purupose) you will be wide awake for the real thing in an airliner.