Comment by 0xbadcafebee

The Before Launcher for Android has a notification filter as well, and is a great simple launcher. It doesn't let you create rules, but you can enable/disable each app's notification, choose what kind of notification it gives, and you can enable/disable categories of notifications (call, navigation, event, alarm, progress, system, car_emergency, stopwatch, missed_call, reminder). You swipe right on the launcher and it shows you the pending notifications.