I haven't spent any real time in Singapore since MBS opened. So excluding any new spots at MBS, I'd strongly recommend iggy's for fine dining in the Sing-world fusion model and the Tung Lok Group restaurants for Chinese (e.g., Jade at the Fullerton hotel). iggy's is at the Regent, quite nearby the Four Seasons. On my next visit to Singapore, we'll be staying at the FS and dining at iggy's.