Ubuntu's popularity often makes it the default choice for new Linux users. But there are tons of other Linux operating systems that deserve your attention. As such, I've highlighted some Ubuntu alternatives so you can choose based on your needs and requirements—because conformity is boring.
You're not going to get a telephone number you can call, but the documentation maintained by Arch is far superior to that offered by Ubuntu. If support is your biggest concern, you're far better served by Arch.
That's fine for someone willing to read documentation, the average user would rather read a forum post, which Ubuntu has a shit load of posts about using and fixing it.