I have an idea, for a story(which I have started writing so relax a bit) about a group of people who are in the last city still controlled by their sovereign. Outside however is the enemy's army getting ready to charge them. I just want to get the opinions of others here, do you think it should be a medieval-magical-fantasy setting or a sci-fi-alien-technological setting? What would be more interesting to you? And by all means if neither sounds more/less interesting just say so. P.S: A modern setting will not work for what I have planned for this tale.