The Nigies are finer boned in general, and it's all about the udder and "dairy" quality. Longer necks, a sloping towards the hindquarters, and a general elegance.
This is a picture of one of my junior does who just won Grand Champion at the Pasco County fair.
See how she's got long legs that "frame" where her udder will be?
Another doe of mine- the neck's are a bit longer and more elegant-
And since it's all about the udder, here's a pic of a first freshner udder which is pretty decent.
And her son, my new junior buck who's pretty fantastic IMO.
In comparison, the pygmies are made to have a "round barrel" body style. Short legs and a compact body are desired, as well as a shorter height.
They are a meat breed, so they are designed to grow faster and put on weight and be as close to a "keg on legs" as possible.
They are just as friendly and cuddly from what I have seen, but can be a bit more 'scattered'.
Both require the same amount of love, care, and snuggles though