In New England, generally the order of favorites goes Victorian, Colonial, ....all others. BUT the price of the home when it was purchased already calculated in the style of the home and the flavor of the neighborhood, just as it will when it goes on the market to be sold. So if you paid the appropriate price for it when you bought it and you get the appropriate price when you sell it, you are not taking a loss because of its style, neighborhood, etc.
I believe that you are asking if you have a split-entry in Oak Hill Park will the fact that it is surrounded by ranches make it worth less than a split elsewhere. In Newton, bigger factors that what surrounds your house come into play. I have seen mansions built next to ranches and still command an impressive price. It has more to do with the house, its location (near the T, shops, restaurants, etc), its benefits - garage, basement, etc.
I love Oak Hill Park, the way it is designed makes it a nice, quiet oasis near the city. But values are impacted by the fact that it is not in walking distance to conveniences. So a split-entry in Oak Hill Park likely won't go for as much as one in Chestnut Hill, the Center, or the Highlands, that is in walking distance to the T.
You certainly could back it up with resale facts. I live and sell in Newton, so I know each village has its own price points for each style of house. As mentioned, it can even change within a village depending on how close you are to the center of tie village and other conveniences. When I do a market analysis, I choose only homes that are in the area that makes sense to compare to that house. Most agents would only select Oak Hill Park houses to compare with (as would an appraiser). Only venturing beyond that area if necessary and making adjustments accordingly. If you need this data, just let me know.