Yes I've given out more 4/5 ratings than anything else and this bothered me for a while. Until I realized this: I do so much research into trying to find something that I'll like, that, odds are, I end up liking what I get. So most of what I listen to is good.

11-29-09 Update:
For films, view as follows:
()()()()() = Perfect.
()()()()( = Incredible.
()()()() = Loved It.
()()()( = Thoroughly Enjoyed.
()()() = Liked It.
()()( = Decent.
()() = Meh.
()( = Not Good.
() = Bad Bad Bad.
( = Horrendous.