I'll agree the the Arch installer could be better, but its not difficult, especially having done it a few times. The install starts pretty barebones and then you add on what you need - annoying if you want a 1-click to fully setup GNOME (or whatever) desktop, but perfect for people like me. You also get the benefit of learning how all the parts of a working Linux desktop come together.

Personally I find all-in-one installers annoying. I find I have to spend a ton of time removing crap I don't want and replacing it with what I do want. It would take me probably as much time or more to install and configure Ubuntu as Arch would.

You might want to check out Fedora too -- I hear the latest release is pretty great. Arch based distributions like Antergos or Manjaro might be good to check out if your only hangup with Arch is the arcane installer.