Interesting example, Jass! Although I must say that Agrael's special ability is stronger than Wing's, because (if I'm not mistaken) the former's ability lasts throughout the battle, while the latter's only lasts for the first turn. But the elves' secondary ability and the higher "native" initiative of the elven troops, apparently, made the difference.
Yes, I also chose a hero based on similar considerations. The result honestly shocked me) Even the Cerberi and Nightmares got stuck somewhere on the line, not to mention the rest, including the hero)
Added 1 minute ago
Dwarves don't rely on initiative, although, undoubtedly, two artifacts for initiative wouldn't hurt here.
It's a pity that dwarves don't have Destruction magic on their path to secondary ability. It's completely unnecessary in the late game. And you can hardly upgrade secondary ability in the late game) It would be much better if they had Dark magic there. That would be great) Or, at worst, Light magic