UEFI BIOS may help boot the computer, but it still relies on the traditional BIOS for power on self test (POST), system setup and configuration. Having UEFI manage data flow between the video card, hard drive, mouse and keyboard, does not appeal to me. For boot and runtime services, in my opinion, UEFI is a software interface that serves little or no purpose.
This is just my opinion in a friendly tone. I respect any points of view on this thread which are different.