13th Age is the spiritual successor to 4e and has a neat faction-style reputation system built in. It was what I thought I would run after 4e, but certain things didn't really click for my players, so I borrowed the reputation system for 4e.<br/><br/>The nice thing about it is that it fuels stories. Instead of rolling your Thieves' Guild reputation when you talk to a Thieves' Guild member, you roll at the start of a session to see whether the guild pops up with daggers drawn, or a request, or an advantage for the player.<br/><br/>I like to roleplay, that's probably evident. But if you decide to include some kind of reputation system, I'm open to dropping Improved Initiative to spend a feat on some kind of broad benefit for Missy. She's meant to get around.