Not to be rude
but if you can't figure out the Arch installer, what makes you think you're up to the everyday challenge of using an unstable rolling release distro? The install process teaches
you how the system is built, so you can troubleshoot it when it inevitably breaks.
In my experience, most people who think
they need a rolling release distro really just want a stable distro with the latest Firefox, OpenOffice, etc. which is easily achieved.
All that being said
if you want Arch with a graphic installer, check out Chakra. Sidux is another good rolling release distro, based on the Unstable branch of Debian.