Which level 7 creature is the best, and why?

Badping,
so, I suggest the following alternative:
let's play, you against me, with you using a hero with 1 Ancient Horror, and I'll use a hero with 1 Archangel. :) In case of a morale drop, a replay will, of course, be necessary. The heroes will be some Elementals with Attack and Defense stats of 50.
And when you lose (and you will lose), you'll write in large text that the Horror has no equal in single combat. :)

Because, frankly, I'm tired of seeing such statements, especially after so many pages of discussion and clearly not from a newbie in this game.
:smile40: :smile40: :smile40:

P.S.:
In this scenario, the Horror only needs TWO hits to take down the Archangel. Just as you said - the Archangel waits, the Horror defends. Then the Archangel attacks twice and, from the recoil, falls asleep.

Added after 17 minutes
A Dragon with a Titan will defeat one Archdevil. I'm also taking bets on the Archdevil:D :D :D