Hi Monte,
I'm not sure if it's an issue for you or not, but school catchment areas may be something you need to consider. For instance Scholarstown Wood falls within the catchment for St. Colmcille's Community School, but Odin's Wood wouldn't. While being within the catchment doesn't by any means guarantee a place in the community school (and many local children have to go elsewhere), being outside it will mean you have no realistic chance of getting a place. I'm not sure how this would apply to national schools or to other secondary schools in the area, or indeed if it is something that you need to consider at all, but it might be something you hadn't thought about.
I can't help you on the relative merits of these developments sorry!