I prefer Peru the most because the geography is so diverse there, you could spend a week in the amazon, in the rural countryside, in Machu Pichu in the capitol of Lima, or any place in between.
Economic Power is Brazil
Quality of Live is Argentina
Brazil:
It's the biggest and most diverse of all of them. There are European-style towns in the south with cool winters, African-influenced music and culture in Bahia with tropical weather, Big modern cities like Sao Paulo and Rio, remote regions untrod by the modern world in the Amazon, innovative music and popular culture, great athletes, etc.
MEXICO- don't be scare about the drug cartels...mexico has more diverse,people are friendly, they have some good medicine universities & architect schools.they have mayan and aztec pyramids.
they have 2 much culture from north to south... MEXICO is actually from north america..
their natural resources are really nice..the mountains,seas,lakes,animals,food,colors... is cheap to spend a good vacation or to buy a nice house with all the things you will need..
Honduras
Puerto Rico :)
Argentina :)
The US