Not to mention most light sources aren't treated as items.
For example:
http://i.imgur.com/mZoYO.jpg
Messing around you can get some weird shadows seemingly be standing in odd spots relative to invisible light sources.
There seem to certain points at which different lights cast shadows, instead of having real lighting.
http://i.imgur.com/YWNOl.jpg
A shout that can knock back trolls, can't even put out a candle, let alone knock it down.
Lighting has always been an issue in TES games but compared to the rest of the game there's just something especially archaic about Skyrim's lighting, not what I'd expect from a game released late 2011.