I usually like a little of both -- at least, I want people to know what's going on, but at the same time, I want to play with points of view as well. I think it's definitely a benefit of unreliable narrators, e.g. me getting into the heads of my Well-Intentioned Extremist villains. Them thinking that they're right and everyone else is wrong, basically. They're terrifying to write, but at the same time, bizarrely fun. And even beyond that, having a narrator who's trying to tell all of the story they can, but is colored by some of their biases (e.g. writing in the RR-Verse for Anakin and co., and being occasionally tainted by biases).
I also usually give the readers more information via head-hopping; I think it kind of builds suspense. As for external narrators -- I can't really say I have.
As for reading -- I kind of like a little of both as well. I mean, I like knowing the facts, but at the same time, there's something really interesting about unreliable narrators, I think. It gives more of an insight into their personality, I think. Although mostly, I love me my unreliable narrators. They make a story more interesting, I think.