So, If One Object is Larger Than Another Object . . .

. . . will the larger object always have more gravity than the smaller object?

Not necessarily. Gravity is based on the 'mass' of the object. The mass of an object is created not only by an object's size (area), but also by its density. For example, a bowling ball has more mass than a balloon the same size because a bowling ball has more density than a balloon.

How does an object's mass work within another object's gravity? It becomes weight.

'When two objects the same size,' 'but with different densities,' 'are both subject to the gravity of a third object,' 'the one that is more massive' 'will weigh more.'

The differences in densities, and therefore the 'relative weight,' causes air to float above the more massive water, and water to float above the more massive minerals.