If you're interested in "unconventional" builds, you should check out my thread, "Creativity is not Trolling" (currently in the Champion Feedback forum). There are lots of interesting possibilities for builds, but unfortunately, team mates tend to blame everything on you if you try to use a different build. More often than not, the cause of the loss is either A) Your team got outplayed, or B) Your team started to treat the game like a joke.
Anyways, I'd welcome some ideas being mentioned on my thread. I come up with some of my own too, but I'm busy with university at the moment, and I don't have a lot of time to test things.
Feel free to discuss things with me.