My BEST Recommendation:

1) OCBC Titianum Card, Zero Annual Fee with min. 12x Swipes (usage) a Year
This Card Earn Cash Rebate (Max up to $50 a Month):
* 5% on Petrol, Dining, Billing & Groceries Spend
* 1% on Retail Spending
+ the $50 GST was automatically Offset with at least $10,000 charged to the Card p.a
for Details : http://forum.lowyat.net/topic/2703542

OR
2) Maybank 2Cards , the Best Card in Town So Far...
It's FREE for Life with Timeless Treat Point with No Expire...
*The benefits of two cards, Maybankard 2 American Express® Card and Maybankard 2 MasterCard or Visa Card, in 1 sign up, 1 service tax, & 1 statement.
*You can Enjoy a low Finance Charge of 8.88% p.a. on your outstanding retail balance.
*5x TreatsPoints for every Ringgit spent on Maybankard 2 American Express Card and 1x TreatsPoint on Maybankard 2 Card in Malaysia or anywhere else in the world.
* 5% Weekend cash back when spend on Maybankard 2 American Express Card capped at RM50 per customer (including Supp Cardmember) per month
http://www.maybank2u.com.my/mbb_info/m2u/p...sonal/CRD-Cards

OR
3) The Best Card for NEWbie- UOB One Platinum Card a Pure Cash Back Card
You can Earn Cash Rebate ON:
* 5% for Petrol (Limited to Total Purchase of $600 every Month Entitled for Cash Rebates, Cash Back capped at $30 per month)
* 5% for Cinema at GSC only
* 2% for Groceries (Limited to Total Purchase of $1500 Per Month Entitled for Cash Rebates it capped at $30 per month.)
* 2% at Pharmacies
* 2% for Telecommunication Bills (Limited to Total Bill of $300 Per Month Entitled for Cash Rebates)
& 0.3% for all Other Purchase

You can consider HLB Wise card as it provide 10% cash rebate capped at Rm100/month but you need to swipe 10 times retail transactions that >= RM50 to activate the cash back. Please correct me if im wrong.

You must understand that the 5% rebate comes from AmEx and definitely it has lower acceptance rate compared to Visa or MasterCard. Normal Malaysia's merchants still prefer Visa and MC.

The best combo is M2Card + OCBC Ti and I'm sure many would have agreed with me. Since your income fulfills for that, I will suggest you to couple it with M2Card.

I'm using both now and still can't find any other better card that can compare with this combo.