On a more serious note, I see that studies at Oxford have re-dated the extinction of Neanderthals in Europe to a much earlier date, some thousands of years before the coming of the Moderns. In a lot of ways, that makes more sense to me than scenarios in which the Neanderthals just "faded away" before the advancing Moderns. I should have expected there would be conflict over hunting grounds, caves and other resources if the two kinds of humans had come in contact, but to the best of my knowledge, no evidence of that sort (cloven skulls, whatever) has ever been unearthed. Neanderthals and Moderns did displace each other several times in occupying the area around Israel over the millennia, and this might have provided the occasion for genetic interchange, if such indeed happened, which still seems open to question.
Also, I see that public opinion polls are running strongly against cloning a Neanderthal although I am not sure why.
More germane to this thread, I learned that some "advanced erectus" populations in Africa of the Homo heidelbergensis/Homo rhodesiensis type were pretty gigantic, massively built and over seven feet tall. Some have suggested that BFs could be descended from this stock, which lived about 300 thousand years ago. I rather doubt this as the advanced erecti seem altogether too human for that role.