Thinking of getting a Citibank Reward Credit Card- Signature. Would like to know how its reward program compares to other credit cards esp the HBSC platinum and AMEX platinum. Currently I am using the ING Orange Everyday card (with 5% cashback) for most of my purchases under $100.Wondering whether the Citibank Signature card will give me greater reward? Any advise will be greatly appreciated. Thanks.