ASUS' UEFI BIOS
ASUS' UEFI BIOS has been, and still is, the standard for comparison for other graphical BIOS implementations. It's smooth, snappy, the layout makes sense, and the overall appearance is modern and attractive.
One of the best achievements in my mind is the fine mesh of the new UEFI BIOS with the classic BIOS navigation. Nearly everything is easily navigated with the mouse, as clicks are swiftly registered and the pointer tracks smoothly. But, possibly more importantly, is that it's just as easily navigated with a keyboard alone, and the layout is familiar to anyone who has dabbled in the BIOS before.
ASUS has also done a few other small things which impact the ease-of-use of the BIOS. One of the most challenging things with a new motherboard or a new BIOS is finding the elusive option you're looking for. Be it power management for your CPU or legacy USB settings, ASUS has created a "shortcut," activated by pressing F3. The shortcut displays a list of functions, and it'll take you the the desired section without having to first go into "Advanced Mode" and then sift through various menus and sub-menus.
The Fan Xpert utility is a clear differentiator for the board, and enables an array of fan speed profiles which are nearly endless, and can be tailored to your desired needs.
The SPD tool is also a great feature, as it will give you quick pre-boot access to RAM diagnostics and other detailed SPD information. As we'll discuss in more detail in a bit, ASUS' BIOS settings are also complemented by an OS-based equivalent, for those who are more comfortable working from the OS instead of the BIOS.