Clearly none of you have ever played with Paladins and Incarnation.
Paladins are unique to High Men and are the most powerful units in the game. Period. End of sentence. Firstly they are cheap, they can be made quickly at every one of your high men cities. They have the best hit points, armor, attack, defense, and abilities. First strike allows them to ALWAYS move first and damage first, they move far too. No other creature, summoned or otherwise, can stand up to the first undefended attack. Paladins are ridiculous naturally, but after proper enhancements, they are unstoppable. ALSO THERE ARE 4 of them per stack!!!!!!
Incarnation summons the The Chosen One. the most powerful hero to your team. He rocks all the socks guys, there is no comparison, he literally has EVERY ability, and most of them with the *Super prefix, which multiplies the growth of the effect. So very rapidly he and the army attached to him, which should be paladins, becomes unstoppable. You are only likely to get this spell if you get ALL life magic books at the character creation screen, as it is a rare life spell.