Steering wheel or controller??

Hi all not been playing forza for long but must say I’m really enjoying it.
I was wanting to know whether the top drivers prefer a controller or steering wheel. I read a thread and someone suggested altering the number settings in the controller so it responds better. What’s people’s thoughts on that? Also thoughts on why you shouldn’t be using abs?
Many thanks kev

You would be best off checking some of the posts in this forum http://forums.forzamotorsport.net/turn10_topics65_Hardware-and-Peripherals.aspx