Buenos Aires Hostels Rio De Janeiro And Buenos Aires?

Rio De Janeiro and Buenos Aires? - buenos aires hostels

How to 10 days vacation in Rio de Janeiro and Buenos Aires? I am a 28 year old man looking for attractive and exciting places to party in January. Would something like Tours Gone Wild? Hotels or hostels? In thinking of 6 days in Rio and 4 days in Buenos Aires. Please give me some ideas on how to plan your trip?