We spent a week in Hua Hin in September (two nights at the Sofitel, two at the Chiva Som, and three at the Evason Hideaway). The Sofitel has quite a bit of historic charm (the former Hua Hin Railway hotel), but it's not a resort, and the beach is a bit lame. The Chiva Som is quite luxurious, and I'd assume that most regulars of this forum would prefer this place, but it just wasn't our cup of tea. At the Evason, we had an oceanview deluxe pool villa, and it was quite magnificent. The spa (Six Senses) was outstanding, and the service was impeccable. The Evason is about 30 mins south of Hua Hin, so it's not ideal if you want/have to be close to the city. As for getting to Hua Hin, I don't enjoy Thai traffic, so we flew; about 40 mins on SGA Air.