Assuming the minimum spend requirement doesn't trip you up, the UOB Visa Signature is an easy way to earn 4 mpd on almost all your local or overseas spending.
The new minimum spend requirements make the StanChart Smart Card's impressive-sounding 9.28 mpd or 10% cashback difficult to achieve— at least, not without endangering your health.
Competitive earn rates, lounge access and an excellent airport limo benefit make the UOB PRVI Miles Card a great pick for a general spending card- assuming UOB's gotchas don't bother you.
Following a year of crippling nerfs, the HSBC Revolution can safely be ignored by most people- though there's one group who will still find it valuable.