I really like the detail in the hood as far as what the gang members are doing and how they respond to Franklin. That has definitely improved since San Andreas where the gang members really just stood in a group smoking and if you approached them they'd circle around you and eventually shoot you.
I dislike however that all that incredible detail has really gone to waste since there is so little gang interaction. As much as people would like to think otherwise, Franklin is still an active gang member and supports the Families. He can get several gang tattoos and can choose to sport green all he wants, what he doesn't care for making red cents pushing drugs all day. After instigating (unintentionally or not) the wars between the Ballas and Vagos that now evidently want him dead why wouldn't he roll with some homies and take a few out, if not for the Families but for himself? Or how about having a few homies to have your back for those overly aggressive police? There is no reason that the recruiting feature was left out and that alone would have added so much more for gang interaction.