A safe distance from the Patong insanity, Evason offers a wonderfully relaxing, natural beauty. The resort is large but unless you actually walk through it, you don't realise the scope and size. Even then, it's a pleasure to explore.
Magnificent restaurants, private island, three pools, one of which an inspiring infinity pool where I swam at sunrise (before the official pool opening time, but with the blessings of the pool man) and relaxed in the afternoon.
You can find cheaper but you'll be hard pressed to find better. I hope I can afford to go back one day. It's already become one of my favorite destinations on the planet.