But again, what you're saying here is purely anecdotal. Actually, it may not be, but I have absolutely no idea because the way you are presenting it is in a purely anecdotal way.
As for the long-term health effects of one or the other, that's still being debated and might be dependent on the joint health of the individual runner. See [1].
[1] http://journals.lww.com/acsm-msse/Citation/2013/12000/Forefo...