Both Spain and Argentina are the most obnoxious Spanish speaking countries on the planet - but they are both pretty awesome places to visit. It's tough. BA is an incredible, incredible city. Patagonia, Mendoza, the wine, the Andes mountains. But in Spain you have Madrid, Barcelona, Sevilla, just tons of beautiful cities. The food in both places is so so good. Both populations think they are they are God's gift to the world. It's a tough call.