JEEee - Zuss
The willy waving going on here.
My View, being an Aussie from an AFL dominated region who likes to watch a good game of NRL/AFL/NFL, is that the codes should not be compared good/better/best because they are different.
NRL/AFL are speed/strength/endurance games, NFL is a speed/strength/power game.
All use tackling, all give injuries - deliberate or accidental - that each league is looking at mitigating.
NFL should look at tackling tecniques of NRL/AFL and adapt into the game - not necessarily outright copy.
If training/practice 1 on 1 (or similar configurations) at full speed was conducted without helmets - from high school thru college and after - even if helmets were game day only, players would be less habituated in going in direct with head when making tackles.
This rule change is looking only at initiating contact using the head.
Playing Rule Article 8: It is a foul if a player lowers his head to initiate and make contact with his helmet against an opponent.
For years player were taught to go in head first. Many possibly still are taught that methodology. NFL has been negligent in this area for decades.