We could rephrase the question: who is a more exceptional athlete; JI or KK ?
Kiptum is more than half a minute faster over the marathon than Kipchoge and more than a minute faster than Bekele.
Ingebrigtsen on the other hand has run 3:27:14 for 1500, more than a second slower than the WR.
I think Kiptum is faster than Jakob for every distance from 10k up to the marathon. And I'm not even sure Jakob would prevail if both athletes dedicated themselves to 5k training for a year.