I lived in Cordoba for a year a few years ago. Stayed in a shared house in nueva Cordoba near the park, and had a great time there. There's a good nightlife scene in that area leading down to la Cañada with lots of live music in bars, more than i ever see in BA. Also being a smaller city it's got a friendlier and more down to earth vibe, a nice change after the intensity of Buenos Aires.
At weekends we generally drove to the hills, especially in the summer to go hiking, swimming, kite surfing etc.. only a 40 minute drive away.
Nueva Cordoba is the only place i'd really want to live, or Cerro de las Rosas which seems more family orientated though.
It does get a bit small after a while, but there are a lot of positives to living in Cordoba vs Buenos Aires.. much more healthy lifestyle and very welcoming people.
Moved back to Buenos Aires from Cordoba a year later for a girlfriend.. didn't work out though. Sometimes wonder why i'm still here in Buenos Aires!