La Latina
Pros: more traditional, flavorful, modern
Cons: run down streets, not close to university, remote
Salamanca
Pros: luxury, sophisticated, classy/fashion, Retiro Park
Cons: busy city, expensive, hard to get around because so busy
I would prefer living in La Latina because it's less busy and cheaper then Salamanca. I would hate walking out of my house and having to dodge people around me just to get to places. Lastly, La Latina has very flavorful food which makes me want to go there even more.