Shape plays a role due to air resistance (drag) - Mythbusters demonstrated that a penny dropped the distance of the Empire State Building only achieved a maximum of 64.4 mph. However, dropped in a vacuum, it would go much faster.
Skydivers falling with the bodies parallel with the ground are maxed out at around 125 mph or so - but if they go headfirst, they can get up to around 200 mph or so. There are competition skydivers who have reached up to 330 mph wearing the right aerodynamic stuff......the fastest skydiver was that guy that dove from 128,000 feet to break Kittinger's record. Somewhere up in the thin atmosphere, he reached a speed of 833.9 mph, because of little air resistance. He was the first person to break the sound barrier in free fall - they calculated it at Mach 1.24. However, as the free fall continued, as the air got thicker, he slowed down.