Eärendil, for the simple reason that this is largely a patriarchal society we're talking about.
If the choice was between Eärendil and Beren, however, it may be a bit more complicated. I suppose, though, that Eärendil still seems to hold more favour among his descendants than does Beren. I kind of see Beren as representing bravery and chivalry, and Eärendil as representing a kind of ethereal monarchy with astounding, almost god-like strength. And in Tolkien's ME, the ones with an air of kingliness/queenliness tend to be remembered more than those who are brave/courageous. E.g. Frodo being almost forgotten despite carrying the fate of ME in his little hands. Not saying that Beren isn't remembered, because we all know he is, but I'd say Eärendil still wins this one.
And I'm probably talking nonsense because I haven't read the books in forever, so correct me if I went horribly wrong. :P