Without any doubts, and being a local, you must go for:
VILLA LA ANGOSTURA
IGUAZU FALLS
CALAFATE (where the glacier Perito Moreno is located)
Of course, there are a number of other amazing provinces such as: Wine Route in Mendoza, the provinces of Salta and Jujuy in the north (not so hot in Nov) but MY first choice is Villa La Angostura without any doubts. I have travelled extensively and consider it to be one of the nicest places on earth.
Check also for GAUCHO100K posts, since he knows travelling around Argentina quite well.
If you need any help PM me
Bye