not to be obtuse

a couple resources

for fish oil - Omega Research

on flax oil, E. Udo pioneered the current permutations of Flax oil and he is still a recognized expert (most of the current producers are using his tech, or were helped to set up shop by Mr Udo) http://www.udoerasmus.com/

fish oil is more of a therapeutic oil, being in a state that the body can utilize immediately, thus better for inflammatory responses

plant based borage oil is more of a foundation oil, which the body must process, but gets more out of in the long run

that is the short answer

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"This thou must always bear in mind, what is the nature of the whole,and what is my nature, and how this is related to that, and what kind of a part it is of what kind of a whole; and that there is no one who hinders thee from always doing and saying the things which are according to the nature of which
thou art a part." -Marcus Aurelius