Regarding this new question:

"So suppose we drop a ton of brick and a ton of feathers on earth in a vacuum and measured it extremely accurately. If both the feathers and bricks were kept together as spheres and the bottoms of the spheres were lined up to an equal height would the bricks end up hitting the ground first?"

They would both hit the ground at the same time.

That is to say, there is no way that you could measure the very very slight difference between which hits the ground first

Consider the weight of the Earth -

5,974,200,000,000,000,000,000,000 kg - compared with two objects that weigh 1,000 kg - you can see that the possible slight difference between the objects, if we assume the density of the bricks is greater than the density of the feathers, which I'm not convinced would be the case anyway (I'm assuming you've compressed the feathers, so it's just a mass of feather - not feather and air). Then there is no possible way that you could measure such a tiny difference. - We're talking about fractions of nano meters here.