I'm currently in Chile, planning what's next. I was thinking Cordoba for 6 weeks then Lima for 6 weeks before Mexico. But now that I see how much I'll be spending on plane tickets I'm considering going to Arequipa instead of Cordoba, to save money on airfare. Anyone been to both and recommend one over the other?

I know where I'd stay in Cordoba, but if you recommend Arequipa, please also suggest an area. Haven't looked into it much yet but it seems big