Hamilton messed up the final corner and lost the pole he already would've been clinging on to by the skin of his teeth. It'd be interesting to compare his last sector time with his previous lap. He would probably be on pole if not for that slight mistake. Vettel's lap was faultless. So many people love breathing Hamilton's name in the same sentence with Senna, but Hamilton's quali form can't hold a candle to Senna's.
On a side note, it's good to see that Red Bull have been caught proper