Jones, probably by late stoppage in a fight he should dominate. A fighter who struggled with Leslie Stewart at 175, is not going to be competitive with a 175lbs RJJ. Moorer was fun but limited at 175, he had potential, but was also a virtual novice.
Jones fights cautiously and wins by wide UD. Moorer had a glossy record at 175, but his opposition there made RJJ's look brilliant by comparison.