Falling to earth is affected by air resistance, so it would slow the lighter object down.
Air resistance is dependant on the shape of the object not the mass. So a properly configured heavy object could fall slower than a lighter one.
But you're right about it needing to be a vaccum (or two identically shaped objects) to show that acceleration due to gravity is not related to the masses of the objects.
It's not enough to bash in heads, you've got to bash in minds
soon I discovered that this rock thing was true
Jerry Lee Lewis was the devil
Jesus was an architect previous to his career as a prophet
All of a sudden i found myself in love with the world
And so there was only one thing I could do
Was ding a ding dang my dang along ling long - Jesus Built my Hotrod MinistryLive every week like it's Shark Week! - Tracey Jordan
Just a monkey in a long line of kings. - Matthew Good
If "elitist" just means "not the dumbest motherfucker in the room", I'll be an elitist! - Get Your War On
*not an actual doctor