Singapore - You'll be surprised
I originally didn't have many high expectations for SG as it has been traditionally a stopover destination for travelers before they head onto somewhere else. But I was so surprised by the mix of cultures, the food and the weather. The nightlife was awesome, it was great for partying but a tad bit expensive especially compared to the rest of Sth East Asia. There was a lot of daytime sightseeing to do whether it be an intense day at Sentosa Island or just a chilled out day at the Botanic Gardens.
Insider Tip:Pack some sunscreen as the weather can get pretty intense