The Nikon is amazing and has a price tag commensurate of amazing. However, since your looking at third party, the Tamron does a very nice job. I shoot with it regularly and would put it at very good.
I 2 ND THE TAMRON. IT HAS SCORED VERY WELL IN "DxOMARK" TEST FOR OTHER NIKON BODIES. GOOGLE "BEST LENS FOR (STATE BODY)" THEN LOOK FOR DXOMARK.COM FOR RESULTS.