We are looking to add a few nights to our Hawaii trip next summer by going to either Hawaii or Kauai. We have been to both before but have not stayed at Marriott/Starwood properties. Of the following hotels, which would you recommend for 1-2 nights?

Koloa Landing @ Poipu
St. Regis Princeville
Westin Princeville Resort Villas
Mauna Kea
Waikoloa Beach Marriott

Other recommendations are welcome. The St. Regis is tempting simply because I know it's a bargain right now, but worried about getting looks from others since we are traveling with kids.