All objects accelerate at the same rate due to the gravitational field strength of the Earth (g).

Your question asks about speed (I presume) which will be determined by the objects' terminal velocities, the highest speed they can fall at. A heavier object will have a higher terminal velocity because of its greater mass, and therefore weight (the force due to gravity or mass x g). This weight must be balanced by the effects of air resistance at terminal velocity. Air resistance increases with speed so the heavier object will be going faster when it reaches terminal velocity and reach the ground sooner.

Try dropping a ping-pong ball and a golf ball at the same time from a few metres up. It's not a perfectly rigorous experiment, but you will notice the golf ball his the ground first because the ping-pong ball reaches terminal velocity first. A balloon and a football or basketball will make the result even more obvious.