"Driving Miss Daisy" continues to drive off all contenders, clinging to the top spot of the Billboard magazine rental chart. Its primary challenger is "Born on the Fourth of July," which would clearly be No. 1 if "Miss Daisy" weren't in the driver's seat. The rental market performance of "Born" is impressive considering that such grim movies usually don't make it to the Top 5. Those that do rarely last long in the exalted circle. "Born" is doing so well because of all those Tom Cruise fans who'll rent his films regardless of what they're about. "Miss Daisy" should be secure in the No. 1 position for a while. None of the Labor Day weekend releases really has No. 1 rental potential. "Revenge," featuring Kevin Costner and Anthony Quinn, moved up two notches to No. 10. This movie, which most critics didn't like, is apparently riding high on the strength of its appeal to Costner's female fans.