The First Man Too.........
Sir Edmund hillary was, no doubt, a great man and consumate mountaineer. As to the first man issue, it really is a facile question.
Any climber will tell you that a pair of climbers work together to complete a climb, one is dependent on the other so to complete any ascent is a team effort.
Indeed, back in 1953 Everest was conquered using a climbing technique that is best described as "laying siege" rather than the more light weight "Alpine" style that is used today. Supplies were hauled up pre-roped routes to progressively higher camps on the mountain until enough supplies had been positioned high enough on the mountain to allow for a summit attempt. This is how the "tourist" climbs of Everest happen today.
In this regard the whole expedition can be said to have climbed Everest as it was a team effort that put Hillary and Tenzing on top of the summit.
More modern equipment, fitness regimes and food supplies allow for a more rapid ascent with less pre-positioning of supplies.
This is not to demean Hillary's or Tenzing's effort but each, I am sure, would have acknowledged the efforts of the whole expedition in giving them the opportunity to complete the climb. That said, it is of no surprise to me, having climbed in New Zealand, that it was a New Zealander that completed the ascent with Tenzing.
Sir Hillary was a great man, an inspirational figure and a gentleman. He devoted his life working to improve the lot of the Nepalese Sherpas and they will long remember him as will the Kiwis.