so to basically sum this up, with ANY wheel/tire combo you will need to adjust your braking to compensate for extra wieght and mass. so the wheels will not effect how long your brakes last and work, only your driving will.
I have steel streetlocks and i didnt notice a difference in acceleration or braking when switching from stocker aluminums. i am in the market for aluminums though because my settlies are bent and rusted and just want a new look. nothing wrong with steelies in general though and they are WAY cheaper. i picked mine up for $30 each new for 15x8s.
come on guys gas is down to less than $2 a gallon, i dont really care about the mileage. i want to go with sum black steel rims cuz they are cheap and they look good on rangers. its not like im racing john force down the drag strip or trying to go from 130 to 25 into a corner really fast.