Keep in mind that if this is your main server, you WILL be rebooting it often to maintain up-to-date security fixes. So boot times matter more than one might first think.

It's not the "boot Win10" or whatever time that matters, but rather how long it takes the BIOS to load the first stage of the O/S and pass control to it. After that, the times are dependent on the O/S and should be similar across different boxes.

Cheers