I go with HSS. HNS had the brute strenght but HSS had the brains and would probably outwitted his opponent.
Perhaps HSS had a faster metabolism, and quicker reflexes?
I don't know what part the metabolism may have played but HSS surely had the better reflexes. Just look at weight lifters today (or any other sport where bulk is paramount, except maybe football players) strength doesn't necessarily mean they are agile and fast.
And why haven't we found any physical evidence of physical confrontation between the two species? Is it out there waiting to be found?
If there was physical confrontatin, I'm sure that we will find it eventually. But I don't think that there was a much as some people like to think. When I went to college and majored in Anthropology, everyone thought that early man was extremely violent and that we went around bashing each other over the head with tree branches, rocks or whatever. Thank you Raymond Dart for starting that way back in the early 1920s.
