Two generations ahead of LXC in which way? There has been no such thing. No point making blanket statements without substantiating them which is exactly what ails the container discussion, hype driven statements with no technical content perpetuating the cycle of misinformation.

All the improvements in containers are happening in the kernel, for instance the long awaited support for cgroup namespaces. Improvements in layers will happen in the overlayfs project with better compatibility for filesystems including possible support for NFS. All this work is happening outside the spotlight while userland runs away with the hype and credit.