That is a bit concerning to hear. Odd they have the best bios atm. I suppose that is could just be a coincidence.
I have been using Gigabyte boards for a long time, but in their recent history they will have a stable BIOS, but when they go to add features or fix issues, they will inadvertently jack something up.
In the example of my current motherboard, I am on BIOS version F5, which is 100% stable. Not long after they released that version, they released F6 and it has been in beta status since May 2016.
Then in November, they released version F20, which added support of fan control (like Asus) and added support of Kaby Lake CPUs. However, it states that you can't go back to an earlier BIOS version (you can, but it's more complicated). This version caused some people's CPUs to be over-volted, caused instability and boot problems, USB 3.1 problems, and other issues. They then released F21 to fix some previous issues that F20 caused.
When people contacted their tech support, they basically responded and told them "This version is only for Kaby Lake CPUs, you shouldn't have updated". I actually have a thread about it and their apps (like
@Bios and SIV) not working after it was updated. Just an all around mess, in my opinion.
https://forums.anandtech.com/thread...ds-and-new-app-center-and-siv-issues.2483155/