Xbox One will soon be backwards compatible(sometime around fall), and you will be able to transfer your characters. However if you want to continue playing Destiny and GTA on the one, then you would probably need to buy them again. Same thing goes for the Playstation. However if you switch to Playstation, you will need to restart on Destiny, I don't think it is the same for GTA however. Also if you are going for graphics then don't listen to any propaganda that many people throw at you. Both of the consoles have the same power in graphics and both of the consoles have their own large collection of exclusives.