If PATCO/NJT were willing to spend MegaBucks the ideal solution would be an underwater tunnel from Westville to Greenwitch yards in south philly. This would allow for a "sports complex" stop with trains eventually terminating at the lower level of 30th St station. Electrifacation could be 750VDC 3rd Rail just like with the old PRSL interurban line.
Other than that I support a standard commuter line for the route with stops at Millville, Vineland, Newfield, Franklin, Malaga, Glassboro, Pittman, Sewell, Wenonah, Woodburry Heights, Woodburry, Westville, Glouster City, Camden Broadway and Camden Waterfront. This would allow suburbanites direct access to the Camden waterfront without having to change to the River Doggle or run the guantlet from Walter Rand to the river on surface streets.