More interiors, clothes, tatoos, cars, planes, countryside with animals, longer story. Peds have their own lives. Stick stuff in trunk, have to pull/put weapons out/in holster. Plane interiors and beable to hijack them and havea passenger jet piolet minigame. More useful interactive vehicles. No exclusive vehicles, I want to find the swat tank again. More star levels (7stars has them bomb you for example). More easter eggs and unlockables. Create your own gang. Furnish your house. NEVER A COOKIE CUTTER BUILDING!! Better AI. Gangs only shoot you if your wearing opposing gang colors, wear theirs and they think your a friend. Rob people on the street, more robberies, heist, or the ability to plan your own.