PCSX2-CE is the easiest way to play PlayStation 2 games on your Mac, using the latest versions of PCSX2.
Settings are also unified so configuration is done once and for all. It enables you to run classic games on a wide range of computers and consoles through its slick graphical interface.
RetroArch is a frontend for emulators, game engines and media players.
The 15' has better options, get a dedicated card, not just the built in.I currently think the best value in a macbook pro IMHO is around 2015, There have not been any major updates since then (unless you count gizmos like the touch bar or taking away all the usefull ports for USB-c, taking away the magsafe charger, or making a terrible “butterfly” keyboard in 2016-17 that has known issues).
