Adaptors: buy them such that you can plug your RV into 15/20 amp household outlet; 30 amp RV outlet; and 50 amp RV outlet - maximize versatility - you never know what you'll run across at parks/campgrounds/other places (such as family/friend's homes)
Home parking area: wire it with an outlet appropriate for what you anticipate it's load to be. 50 amp if you expect to run 2 a/c's; 30 amp if you expect to run 1 a/c; 15/20 amp household outlet if you expect to run fridge/converter for battery charging/etc.