Back on bwl we would raid northern stv in the top right corner there's a quest place that usualy has a lot of 27-29 Aliance ppl ripe for the ganking . If your looking to try and get a place where both horde and Aliance 20s would pvp vs each other only like a fight club use your imagination with instance zoning . If you are below lvl req you can go through the portal to what's behind it . Pvp in the area behind brd or strat or something crazy like Kara . I remember somebody did a series on exploring different places in wow as a f2p that would have lots of great ideas . Maybey it was goesid ??? Anyways gl with what ever you are after