uob one, mbb ikhwan, cimb cr plat.

It was good previously but it will revise its benefits from 1st August onward.
The 5% weekend cash rebate is only applicable for dining via AmEx. Unless you dine a lot during weekends and those places accept AmEx, then MBB2Cards is a better choice.

But well, yet it still has 5xTP which gives about 1.25% return.

That said, your income is below RM 36k, so you are only allowed to have two issuing banks' cards. So, you have to prioritize your usage.
It is better to apply for cards which give you cash back now rather than points.