Answer as below:

here's a simplified table:

Maybankard 2 Cards	Benefits	Limit	Mon	Tue	Wed	Thu	Fri	Sat	Sun
Visa/MasterCard	TreatsPoints	Unlimited	1X	1X	1X	1X	1X	1X	1X
American Express	TreatsPoints	Unlimited	5X*	5X*	5X*	5X*	5X*	5X*	5X*
American Express	CashBack	RM50 per calendar month	-	-	-	-	-	5%	5%

*2X for Government Bodies, Education Institutions and Insurance Providers

If you plan majority of your spending on weekends, you'll gain more using Amex than Visa/MC.

Amex's 5X TPs is equivalent to 2% (in TPs), higher than OCBC Ti's 1% (in cashback). Effectively, Amex in weekends give you 5% in cashback and 2% in TPs, that's 7% worth of gain each month..

If you have other cards to complement, e.g. OCBC Titanium or HLB Wise, then use those for weekdays and/or higher spending.

some recommended readings:
http://generationsxyz.blogspot.com/2012/02...an-express.html
http://generationsxyz.blogspot.com/2013/12...edit-cards.html

it's equivalent value only, not cold hard cash.

you see, you need 12,500 TPs to redeem a RM50 voucher. in order to obtain 12,500 TPs, you need to spend/swipe RM2,500 (2,500 X 5 = 12,500).

So, RM50/RM2,500 = 2%
Now, work the numbers the other way round:

Spend	AMEX 5X TPs	Equivalent Value
RM1	5	RM0.02
RM10	50	RM0.20
RM100	500	RM2.00
RM1,000	5,000	RM20.00
RM2,000	10,000	RM40.00
RM2,500	12,500	RM50.00

In short, you swipe RM2,500 to give you 12,500 TPs to redeem RM50 voucher.

Advantage: Higher equivalent-value in TPs than OCBC's.
Disadvantage: TP redemption only.
Now, let's compare OCBC's 1% cashback: To get RM50 cashback, you need to swipe RM5,000 using OCBC.

Advantage: Cashback can be used immediately to offset some of your cc outstanding. The more you spend, the more cashback you get, no limit.
Disadvantage: Low 1% cashback.

no, weekends will get extra 5% not 2%...

you cannot use a credit card to pay off another credit card

curious: is this your first time using M2U / Amex?

here's how you make payment to your amex. it's simple and straightforward. if you have multiple savings account, you can choose which one to draw the payment from.

at petrol station that accept amex during the weekends.

check this topic instead.

https://forum.lowyat.net/topic/1803385/latest

Petronas Kinrara accept cc reload for TnG. Amex accepted. 1% cash surcharge, so, still worth it paying with Amex.

I did my RM400 TnG reload last month.

Hard to find is true. If you found one do share with us.
cybpsych have inform you the Threads you can find more info

yes, not many petrol station accept amex for tng. so far only heard (still accepting) one petronas charges 1% and one caltex charges 3% for tng with amex.

if you can get 50 cents charge for payment with amex, that would be the best.

another way to get tng rebate is to use aeon watami cc for 3% rebate at tng hubs or selected plus toll cs.

Google Map http://goo.gl/maps/2qQNx

it's nearer to LDP/Sunway Toll than coming from Bukit Jalil/TPM cuz u need to make a u-turn back. 

yes, go up the bridge, and keep left heading to Bukit Jalil.

Always keep left and you'll see the Petronas. Be careful on this left turn cuz there are speeding cars coming from left lanes (those who took the "under the bridge" roads from Sunway or coming from Puchong).

I think to be safer, take left lane (before going up the bridge/flyover). stopped for a while at the main crossroads below (traffic lights). Go further ahead past traffic lights, and keep left instead.

This way, you wont have conflicting cars hitting you

yes, if you take left lane under bridge, it will lead you to a left turn to puchong. then you will need to u-turn back and turn left towards the kinrara furniture street.

i also long time didnt take the lanes below. i guess there is an exit to head back up to Bukit Jalil.

to the left, not right. yes, it's troublesome if go under the bridge.

Don't go there on purpose. Only when you're nearby, e.g. Subang, Subway Pyramid/Lagoon, IOI Mall, etc.

It cost me RM5+ of tolls just to go there, so I only plan my reload if I got activities at Pyramid.

or if you have any programs around puchong like ioi mall, boulevard, setiawalk, etc. doesn't cost extra toll from puchong to kinrara furniture street.

I used amex to pay my unifi bill every month during the weekend through maybank2u. You will enjoy both 5x treat points and 5% rebate. Take note not all bills can pay through amex. Depend on which company you refer to and whether they accept amex or not.

TNB yes, Astro no