If all units were to compete Wimbledon-style...

[Zechnophobe]

A few things:

1) Abilities that damage take into account Attack and Defense. Otherwise abilities like the breath attacks for black and red dragons wouldn't do nearly as much damage as their normal attack.

2) Ancient Ents have less leadership than an Archdemon, meaning that the AD wins hands down due to Halve ability triggering.

3) Tirex looks like it should easily kill an Archdemon in a fight. SO I think our little tournament would depend on fight order. If Black, Red, or Green Dragon takes out the tirex first, archdemon wins. If tirex takes out Archdemon first...

Actually, that's a good question, Does a single black dragon beat a single green? 50% fire resistance vs 20 physical, but the green has lower base damage, stats, and health. Target capture though helps close the gap quite a bit.