Ok so here is an answer to all your questions 1) yes your character and exsisting Xbox live account will transfer to your new Xbox should you choose to get one 2) all of your old 360 game will be backwards compatible this September when all the new games and updates drop 3) there is a huge rivalry between ps and Xbox players but honestly there are next to 0 differences between the 2 consoles except for I think the ps4 has a tad bit better graphics based on popular opinion and the controllers are different, I personally like the layout of the Xbox controllers better but I've heard good things about the Ps4 controllers aswell Happy hunting!!