Which level 1 creature is better?

Hmm... considering that a centaur can wait and then attack for 2 turns in a row... once, the response is to finish the job on the next turn, and that's it. And where will anyone lose?

Two turns in a row is not critical in this situation, because after the centaur's attack, there is a response, and the halberdier will also receive protection! Don't argue, just check it out! Why argue if you don't know?