Which third-level creature is the best?

In the poll, I voted "0" because the premise of the poll itself is flawed. It's incorrect to create a ranking of creatures based solely on votes for the strongest. From a methodological point of view, it would be more accurate to compare the rankings themselves. Otherwise, if you were to measure based on the fourth upgraded level, everyone would have a score of zero, except for Vampire Lords, who would have 100%. It's clear that Grand Elves are the most useful in most cases, but other creatures are also useful... You see, the very question "which is the best" is fundamentally flawed. It makes sense to talk about a ranking or a hierarchy. You're right to raise the issue of the movement penalty on non-native terrain. And the comparison itself revealed many interesting things, such as the strength of Ice Elementals and third-level flying units. And I hope that my comments about ghosts will help someone during their first week of playing...