Personally? I'd take 5 over 4, but I'd (so far) take 3+GWX over 5. But it depends on what
you want theatre and gameplay-wise. All the games have their pros and cons, and they all have there fanboys and haters (more like - dislikers!). They're all available so cheap now
you may as well buy the lot and try for
yourself as only
you will know what is preferred by
you!