Does the new SHA-3 Keccak hashing algorithm offer any benefits from SHA-512?
"Even worse, none of the SHA-3 candidates is significantly better. When SHA-3 is announced, I'm going to recommend that, unless the improvements are critical to their application, people stick with the tried and true SHA-512. At least for a while."
Source: http://www.theregister.co.uk/2012/09/25/sha_3_hash_contest/