I would say that arch is more sus, Like even before your claim, he seemed really active, so he had plenty of time to say his role and potentially survive all the way to guardian with his abilities. But no, he decided to say quiet and let town suffer from all the deaths. Because 1) he is not hooker 2) Even if arch thought about to reveal it and maybe making him more townie, he didnt really wanted to have all eyes on him, which I dont think arch would think like that (edited)