My goals for this trip are to see los glaciares national park (Cerro Torre and Fitzroy) in Argentina and Torres del Paine in Chile. We are considering a stop on the way back in a more tropical location.
Over all, a 3 week trip is what I think we are able to do, that could mean spending the whole time in Patagonia or just 2 weeks, we'll have to see how this all pans out and what everyone's goals are.