But what is the advantage of Arch over Ubuntu? They are both Linux... My question was serious, I really don't know why I should prefer Arch.
But what is the advantage of Arch over Ubuntu? They are both Linux... My question was serious, I really don't know why I should prefer Arch.
Your question, now, is a much more open one, then more difficult to answer. This page try to explain the Arch Way https://wiki.archlinux.org/index.php/The_Arch_Way
I wrote something that tried to explain why AUR is an important part of Arch Linux http://www.nicosphere.net/why-aur-is-part-of-the-arch-linux-...
Simplicity of use, packaging, configuration, understanding. No default choices as Unity, it's light and fast, a great distro to learn from, great community and documentation, and much more, that make Arch a great distribution widely used.
Also keep in mind that to a large degree these things are a matter of preference. I like Arch's package manager over Debian's. Things like that have pros and cons, but on some level it breaks down to simple preference.