MPC-HC is a fork of MPC but it includes native DXVA hardware acceleration of many formats including h264. It also includes the changes of the commonly used patched version including security fixes. It has EVR support too.
I don't have a compatible card yet, but i'd be interested to see what kind of CPU usage some of you would get with this. I can't get HE-AAC working on it with the samples, but maybe someone else would be able to by messing around in external filters. Make sure you enable h264 in internal filters.