What are some alternatives?
When comparing GRUB and freedesktop.org gummiboot, you can also consider the following products
EasyBCD - EasyBCD is NeoSmart Technologies multiple award-winning answer to tweaking Windows bootloader.
PLoP Boot Manager - The PLoP Boot Manager is a small program to boot different operating systems.
Visual BCD Editor - Visual BCD Editor - advanced GUI version of bcdedit utility. for Windows 7/8/10 and Vista
Libreboot - Libreboot is a distribution of ...
coreboot - coreboot is an extended firmware platform that delivers a lightning fast and secure boot experience...
Grub2Win - Safely dual boot Windows and Linux without touching the Windows MBR.