Most buildings at OKW are going to be just as nice as any other. They refurb each building on a regular basis, so we never know which ones are being done when anymore. If you request buildings 62, 63, and 64, you will probably require a medical need, since those elevator buildings are mostly reserved for that. If you are not in the HH booking catagory, I would request buildings 15 or 16. They are near enough to the HH area, and have the added benefit of being easy access to both Miller's Road bus stop and pool and HH bus stop and pool. Just bear in mind that if you are needing that second door to the bathroom from the living room in a 1 or 2 bedroom, the only buildings with that will be those 30 and higher. If you need the extra door to the bathroom, I'd request buildings 45 or 46. They are down on the canal (best views in OKW in my estimation), but will be a quick walk to the South Point bus stop for access to the HH area, or it is actually a rather easy 5 minute walk too.
