I loved the early missions in GTA:SA in the hood with Ryder and the other dude and the reputation u built up with Grove Street. The ability to recruit gang members and have them follow you and pull up on a street in an SUV and fight a rival gang. That alone could keep you busy for hours and not to mention the gang wars which was a great addition that gives you something to do after the story is finished that I was hoping they would have expanded on in GTA V.
I never feel like I am "in the wrong hood" and dudes are talking trash to me or shooting at me on the spot because of my reputaion with their rival gang. Yeah the "Ballers" or guys in Purple will be quick to fight you if you bump into them or talk trash to them but it seems you have to initiate it.
I also never see Latin or Chinese gang members just wandering about. All the time they spent making this game and with all the minor details and such they put in I think there is some major oversights in certain areas an especially with Gangs and such. Hopefully they add some things in the future but does anyone else agree?