Which level 1 creature is better?

What kind of nonsense is that???? Just press the spacebar with the Halberdier, and the Centaur will retreat on its own!

I agree! And without a chance!

Hmm... considering that the Centaur can wait and then attack twice in a row... Once, it attacks, and on the next turn, it finishes the job, and that's it. And who will retreat in that case?