Are there more studs or "antistuds"?
There are more antistuds based on your description, you have to account for the flat bricks that have no studs and any sloped bricks that have at minimum twice the number of anti studs. While there are the inverted sloped pieces the standard wider bottom are more prevalent and there are more variations in length and width. Also many of the flat wing pieces have more antistuds for overlapping purposes. Even counting those as 1/2 antistuds since they do not cover the entire stud, they still possess enough hold to keep the model together. With the more custom pieces used in the Star Wars and newer space kits to give the starfighters the smooth look there are many more antistuds on those pieces. That is not even counting the technic bricks.