If you read further on that second link you gave you'll find out where my numbers came from? You didn't even read it i guess. Those are the latest RMA rates for z77 boards.
So as you can see there's no need to bash any brand here. Yes MSI made some big quality mistakes before, especially in their early batches for new chipset generations. Going into hardcore notebook market was a little bit overkill for their motherboard bussiness for sure. But they upped the quality a lot in recent years... I'm not sure if you know they halfed their size of motherboard bussiness after entering high-end notebook market. Before that they were shipping even more than Gigabyte you know. Well and for the first quarter of 2014 they seem to be at 3rd place again since they start upping their capacity and ASRock keep missing their shipping targets with big margins (after that z77 disaster it's normal though).
But on the other hand, ASRock still keep using unreliable D-pak mosfets even in their latest mid-range boards. And they even keep going further by false marketing. They claim that Extreme3-4-6 and some other boards are using digital pwm. But NO! They are actually using analog pwm since Intersil is an analog brand. It's somekinda fraud! But did our mighty omniscient Tradesman1 aware of it? Of course no since he's acting like a one man bashing crew in the world's one of the most popular enthusiasts forums, without no actual data, and first-hand experience of course. Just some wild rumors and unprofessional, unethical false claims.
I understand that dumb MSI US sales guy didn't give a flying fudge about you and you still feel very sad. But that's life, get over it already.