recently zoe tay has noted that her likely successors are joanne peh (for her modern look) and felicia chin (for her hardworking attitude). indeed, zoe's good friend, chen hanwei frankly commented that zoe's reign is over.
(allow me to disclaim liability if I have read the newspaper article wrongly)
looking at joanne's and felicia's acting in golden path, it seems to me that joanne acts better though she may have lesser screen time. indeed i remembered the scene when she is pregnant. she was walking high heels and she looks really elegant.