Expensive and rich never means nicer or more community friendly. But both are great areas! I think Westville has more resources (library, farmer market, several nice restaurants, cafes etc) - the area around Edgerton is a retail desert. It also has more typical-sized homes, bungalows, etc., than the area around Whitney does, so objectively speaking, you have a much larger number of typical families with young children living there. The area along Whitney and Saint Ronan Street has more of a mix of either 1BR condos or very large mansions.