Many of the powers should be similar- it doesn't matter that one Nephilim's armored hide comes from a draconic or elemental ancestry, for instance, assuming they're mathematically identical in value.
Others might be a bit more different- is there a meaningful difference between a Nephilim with a firey breath weapon derived from a dragon, an elemental or some fiend in his bloodline? (IOW, you have to ask at what point does biological dilution reduce dragonfire, elemental fire, and hellfire into functionally identical supernatural effects.)
Others might be a bit more different- is there a meaningful difference between a Nephilim with a firey breath weapon derived from a dragon, an elemental or some fiend in his bloodline? (IOW, you have to ask at what point does biological dilution reduce dragonfire, elemental fire, and hellfire into functionally identical supernatural effects.)