I used to be in the crowd that only uses Unrelenting Force, but then I discovered that... Ice Form, was it? The one that pretty much freezes a target solid? Great way to have fun when you're taking on a big baddy one on one. Met a frost troll once, on a tall mountain. I was nowhere near the level to take on a frost troll, and I sort of... Well, I panicked. I thought I had Unrelenting Force equipped, but I was mistaken. The troll charged at me as I launched my shout, and to my surprise the bugger froze solid and kept going in it's original charging direction, right past me and off a cliff.
Gotta say, I hate it when I have those moments and nobody's around to witness it.
I can imagine what it must've looked like down below, a frozen frost troll falling from the sky.