Heartbreaking that Gaggan has closed. It was exceptional (although I never felt it was a top 10 in the world restaurant).
I come to BKK frequently, and generally avoid Pattaya. The main reason for preferring BKK is restaurants. BKK has so many fabulous places for food. It's become a foodie vacation destination. Nothing beats having a world-class meal followed by a world-class LB for dessert.