.38 Super is classed as minor power factor, regardless of the power factor achieved, if competing in Standard / Limited / Limited 10. As such .40 S&W, which is classed as major power factor rules the roost due to the added mag capacity over .45.
In Open .38 super or 9mm can be loaded to major power factor, and rules over the .45 & .40 due to mag capacity and higher gas pressure working the comp better.
.45 ACP rules in Single Stack or IDPA CDP - the rules are written to give .45 an edge.
In Production all calibers are rated as minor power factor. .40 S&W has a slight edge in that heavy slow bullets tend to give better recoil control. Obviously hand loading is required here. Otherwise 9mm pretty much rules the roost due to cost and the range of guns chambered for it.