Must haves: 6" walls for better insulation, high quality windows, radiant floor heating with geothermal heat pump, 10kw pv system, proper orientation to take advantage of passive solar, large laundry/pantry with dog washing tub, professional cook top and dual ovens, large kitchen island with food prep sink, lots of light including under cabinet lighting in kitchen, lots of storage in kitchen and baths, finished attic for storage, large garage with attached shop area, receptacles in baseboards, hardwood floors(bamboo), lights or solar tubes in all closets, inside/outside sound system (e.g., Sonos).
If your building in baton rouge, radiant floor heating wil be great on all 8 cold days a year you will actually use it, IOW, its a waste of $.
On double oven, im going to suggest if wife is 5'5" or shorter, buy two single ovens or one single oven and commercial gas cooktop with oven. My wife has trouble reaching out of a 400 degree top oven.
Other than that, like everything, can never have enough storage or lighting. Make sure those garage doors are 9' & insulated. Just say no to vinyl windows