SJC Airport Doubletree
I'll second that. The SJC Airport Doubletree is one of the nicest hotels we've stayed in. Their customer service is 5 star, and the rates were pretty decent for weekend stays.
We've stayed in six or seven of them and always had good experiences. Have only been to Courtyard twice, and found them clean, accommodating, and friendly. But definitely a step below DT in luxury.