Rolling-release distros and low-maintenance updates are pretty orthogonal concepts. That said, once you get it set up, it's only the major, breaking changes that require real work to maintain, and these are posted regularly on archlinux.com.
I update once a week, keep configs up to date with "yaourt -C" (yaourt is available in the AUR), and read archlinux.com prior to updates to avoid issues.
One caveat is that you need your /boot mounted if you keep it separate, or else anything that depends on linux-headers (like filesystem drivers :/) will break if there's a kernel update.
If you want stability along with the tweakability, go with Debian.
I update once a week, keep configs up to date with "yaourt -C" (yaourt is available in the AUR), and read archlinux.com prior to updates to avoid issues.
One caveat is that you need your /boot mounted if you keep it separate, or else anything that depends on linux-headers (like filesystem drivers :/) will break if there's a kernel update.
If you want stability along with the tweakability, go with Debian.