Houdini had a slight edge against Stockfish DD, which is a few months old. The latest Stockfish version (v5, very similar to the version that competed in the TC

Houdini had a slight edge against Stockfish DD, which is a few months old. The latest Stockfish version (v5, very similar to the version that competed in the TCEC Superfinal) is ~60 Elo stronger, and demolishes Houdini at all time controls. It should soon start hitting the more conservative ratinglists.