Depends what you're going for really, if you're wanting to have a huge learning curve then I'd suggest Arch.
If you're wanting something to use to replace Windows as a workplace I'd use Fedora. Then again it's all personal preference aswell, what I did when I first started using Linux was try as many distro's as possible and familiarise yourself with different types such as Gnome, KDE, Mate etc.. Then decide which you like best.