I'm not a big fan of Hildon foundation because the name Hildon already designate something, that is not inclusive of this community.
The issue with Aeolos is that it's another new abstract name, and there are already too many. (on the other hand, for a fresh start, it's probably for the best).
For the sake of the NFP name, both are ok in my view, but for a website or something, a more descriptive name would be better perhaps.