What's the best way to go from Rio to Buenos Aires?

Hi,
I am planning a trip to Buenos Aires, but my first stop on my trip will be Rio. I got a good deal from my agency, and I was thinking it would be a good thing to visit a Rio first… Does anyone have some experience about this route? It would be very nice to hear it from you what is the best way to go from Rio to Buenos Aires. Thank you so much!

Hello,
Buses are the best way to go because there are not many options. Taxi is the best way to travel to and from the city. You can combine some bus and train trips of course. However, go for the flight, it is not that expensive. Bus is a long ride, but I do not think it will be 48 hours though… Have a nice time!