I believe the Conqueror's executions really lack in comparison to most other classes. Here's what I imagine as a good execution:
1. Flail wraps around the neck, like the Garrot execution
2. The Conq takes a low and wide, forward leaning stance as the shield presses into the victim
3. He lifts the victim back and pulls him into the shield using the flail
4. The victim's neck is squeezed until decapitation
5. The head is pulled back with the flail as it falls behind him
6. The body gets thrown, slammed, or pushed to the ground.
In my head it just seems too B.A. not to suggest on the forums. It is reasonable and realistic in my opinion. There are some glorious executions in this game, but Conqueror's pale in comparison.
Thanks for reading.