[lostmyhead]

What's the best boot loader for dual booting windows and Linux?

[Drako]

When I was dual booting in the past, I used rEFInd for its GUI. I think systemd-boot is preferred now if you want something simple.

[Leviathan]

The easiest is arguably GRUB for dual booting, nowadays a lot of people switch to rEFInd though since it's the favor of the "month".
systemd is 100% not a good choice for dual booting due to some oddities that it has.