You do not know what you have started. Here is a link and it shows what is honestly better, tbh it's all based on your opinion. Watch all 12 rounds if you really want to see, or skip to the ending to see the results.
Honestly, whichever one your friends have.
However, it's so late the in the generation cycle that I would recommend not buying either and wait for the new generation of consoles, which will probably arrive in 2014.