Not sure on your budget, but I would go with the Asus. I have generally been very happy with Asus components over the years. Besides, not too bad looking either. The PSU should be fine unless you are stuffing a high-end GPU into the system. If that is the case, neither PSU is really a top choice.
What other components will be going into your new system? Good luck!
Each pair of numbers indicates how much power is output on each of those line types. For GPUs, the +12V rails are important to ensure that they provide enough juice to the GPU. Without going into a lot of detail, the highpower PSU appears to be adequate for use with the 5850.