ok here we go... central jersey on the east is from turnpike exits 7-13. on the west from lambertville to burlington. got it? end of discussion. lol look at it on a map... it makes perfect sense. visit everywhere in new jersey and there is a different feel to each section. south = philly fans mostly. they even talk different central = is all confused... philly, new york, pittsburg, los angeles ...all kinda fans. they (we-i'm from hamilton square) talk like true new jersey people. not as much philly or new york influence here. north = mostly new york fans. if your from the north east theres a good chance you have a new york/jersey accent.
This is like asking "what state are the worst drivers from?" Everyone is going to have a different answer and it's going to depend entirely on where they themselves grew up. In other words, every answer is useless because of the ingrained bias of the answerer.
That's a good question. I'm in central jersey right by exits 8 and 8a (Mercer) and if I drive slightly north it gets more city-ish (New Brunswick, Newark, Edison) and if I drive slightly south east I hit Allentown, Imlaystown and slightly further is the barrens. Id say where I live is right on the border so if you ask me, south jersey starts about a few miles south of me.