At the end of the day, the quality of your facebook feed depends on who you are friends with. If you want a better facebook feed cull out the ones who post uninteresting things.
Sorry but I don't unfriend friends. Reason: they are really my friends and it would be rude -- not to mention hurt their feelings. That is just one example of where Twitter excels above Facebook: you can unfollow or mute a feed. Most of the people I follow are not my friends -- just interesting people that have interesting things to share.