http://www.youtube.com/watch?v=DhyhibTG17g&mode=related&search=
Heres a good compilation of football hits. I don't really know wich would hurt more considering I played football just a little and have never played rugby but I'd think if some of these people didn't have pads on they could be hurt...alot. Although I can't really judge because I've never really played either sport, I'd think rugby would have harder consistent hits while football has the occasional, I think that guy is dead hit. But I don't really watch rugby so meh