after using both, i've decided to stick with the rotor mainly because i didnt want to spend forever messing about with the magnet combinations
both are completely toolless
both have different capacity shells
both have a low profile
both have unjamming systems
so the bit i was torn between was that the magnets can be a real pain, but the prophecy can change lids superquick, obviously without having to change shells like the rotor. however because they can essentially be changed just as quick, because prophecys cant use the exalt feedgate which im a diehard fan of, i went with the rotor