I recommend you to take a look at
Argentina tours Travelsur offers three day Argentina tour package for two people. Everything in is included such as breakfast, four-star hotel lodgings and domestic airfare. There are many Buenos Aires hotels for you to decide on, You have a luxury hotel named Alvear Palace Hotel, also there is long line of Starwood owned hotels to consider as well. Park Tower Hotel, Sheraton Hotel and Sheraton Libertador. Starwood is famous for their customer service and will match all of your needs. You can look here to help you decide
Buenos Aires hotel.
Look here for
flights in Argentina to the greatest
Iguazu-Falls. And also getting on over to
Mendoza you may find this one worthy of note
Argentina transportation. I hope this helps.