The be quiet! Dark Rock Pro 4 wins in 2 out of 3 comparable specs. Its biggest advantage is MSRP (31% better).
MAG CORELIQUID E360 wins in 1 spec (TDP Rating: 16% better).
Recommendation
Choose Dark Rock Pro 4 if you want the best overall performance — especially msrp.
Choose MAG CORELIQUID E360 if tdp rating matters more to you.