This would appear to be a list thread. I'd reccomend adding a bit more meat to the discussion or it seems very likely to be closed.
Human shields can be an effective piece of drama if done right. A version that comes to mind is a certain G Gundam episode where Rain becomes a human shield due to being taken hostage by an enemy Gundam Fighter. The Gundam ends up hanging off a cliff whilst it's opponent (Neo-Russia's Bolt Gundam) looms in, seemingly going for the kill. However, fearing this circumstance, Rain's 'boss' Domon (who's own Gundam has been damaged) pleads with Bolt's pilot to instead save her, even offering up his own Gundam's head as payment (an act which would disqualify Domon from the tournament). Given how winning the Gundam Fight is the only way he can restore his family honour, it says alot of how much Domon cares about Rain.