I'll likely go for Ubuntu just because it's the most accessible choice right now, and the distro I'm most used to. In my case, is there a reason why I should go to other distros? I'm mostly used to distros like Arch, CoreOS, etc. being used for production servers and other specialized hardware over personal computing.
IMHO Qubes (https://www.qubes-os.org/) is the only desktop distro with worthwhile differentiation. Most of the other distros' gimmicks fall under "who cares" if you just want to browse the web and program.