Pam the Grand Hyatt is very nice even though it's huge. Lauri & I are going to try the Park Hyatt before SPICE if we have enough award points.
If you're into it tea at the Burj al Arab is very nice.
Oh, the best thing I did was the desert safari with Platinum Heritage Tours. It's smaller than some of the other ones but is a really great experience. Not so much dune bashing as what some of the other companies offer either. I hope Lauri will want to go so I can do it again.