I'm an Accor hotel member so occasionally get emails about big discounts, and couldn't resist $50 a night to stay at the Mercure in Pattaya. It's a big hotel and looks quite new and modern.
I stayed in a Superior Room with a queen bed which was just perfect for 2 people. It was nicely decorated with Thai art and had a balcony. WiFi was extra.
The pool was huge and it was easy to find an empty lounge chair. The only downside is that it's a 10 minute walk to the beach, but the hotel has a shuttle bus that takes to the main road The spot where it drops you off is next to a bunch of cheap massage places (not the sleazy kind!).
The Mercure is a nice hotel and the prices are really good, but I'd rather be closer to the beach.