Call me old fashioned but yes, think I'd get more of a buzz out of staying at Raffles if only for it's historic context. Whatever happened to the good old romantic, exotic Oriental Singapore of the Raj era? siiiiigh.
The infinity pool in Singapore is just so amazing! The view is SPECTACULAR, especially at night. If you're staying at the Marina Bay Sands, I would highly recommend it (not to mention the casino in this hotel is one of the best in Singapore)!