Well, I don't know, it's written somewhat unclearly. Here's how it would be in hand-to-hand combat:
1. Archangel
2. Ancient Behemoth
3. Archdevil
4. Black Dragon
5. Titan
6. Golden Dragon
7. Enhanced Hydra
8. Ghost Dragon
I don't know exactly what you mean, but when I did similar one-on-one checks, I gave the top spot to creatures based on the number of winning battles against a specific opponent, i.e., for example, the Archangel has 8 wins out of 8 - first place, and so on. I don't remember exactly, but it seems this list isn't entirely correct. Also, if you take into account the double growth of Phoenixes, then the first place would belong to them.