Henry said the contest holds intrigue because of the contrasting styles.
"These teams have generally both grown up controlled by different environments, like how they were coached and the weather conditions. Some recent European sides have tried to play like the All Blacks and they end up coming second.
"The All Blacks hold a huge advantage because they play together more than the Lions, but the tourists have got better as they have gone along. They see more of each other on the club scene these days compared with 20 years ago."
Henry said a key point of difference might decide the series like the All Blacks' ability to offload, or the Lions' physicality in the tight.
"One moment which stood out on tour so far was Sonny Bill Williams' pass to set Ihaia West free for his try which helped the Blues win. That was sheer brilliance.
"Likewise, the Lions' strength, particularly against the Chiefs, stopped quick ball at the breakdown.
"It comes back to the set piece. The All Blacks need a platform which enables them to take the ball over the advantage line so the Lions are constantly running back. Alternatively, life could be made difficult if they are forced to generate momentum from a standing start, while staring at 15 red jerseys."
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