Oil puddling on valve cover near PCV?

I had the same symptoms, but my issue was the PCV HOSE...it essentially had stretch the opening where it connects to the PCV valve and was allowing a bit of oil to leak out. I could have bought a new hose, fab'd a new hose or just add a hose clamp...I choose door #3 and haven't had any issues since (circa 2 years).

Best of luck!