Not all samplers have the same capabilities, so some patches may be slightly different across the different platforms. For example, Kontakt instruments might use release samples to better match the original sound, while most other samplers don't have them because release samples are not supported. Another example is the ability to loop only some specific samples within a patch, which is possible in some samplers but not in others (relevant for some of the SFX patches). If you have a choice, it is recommended to use the Kontakt instruments when possible, as these patches have all of the authentic instrument features programmed into them.