I thiknk your contributions have some elements to it that could be expanded. The sign/lines you have used inside the Q is a reference to the asian atmosphere we try to communicate. And its fine in a subtle way. (Does it BTW mean anything?)
The dual V, i don´t like. It turns the logo into a hard substance and i would suggest getting rid of it.
Hence i like Entry #3 the most. Still, it is too hard and simple. I would urge you to expand on the Qi sign and make something more graphical out of your initial ideas.