Just to clarify OOC: not-killing the Archon doesn't necessarily have to mean allying with him or whatever, the Inquisition can still decide to imprison him later if they want; it can just be a deferred decision. You're also welcome to do whatever you guys ICly want to do with the Archon, basically. Obviously every choice will have different consequences for individuals and for the Inquisition, but there are no secret mod limits where you're going to ruin stuff and we'll be mad because now the plot is broken and Corypheus wins.

ALSO the decision doesn't need to be unanimous, you just have to figure out if the people who are willing to act would be stopped or not. Others can continue to disagree and don't need to be swayed to consensus unless you'd like them to be.