>arch
I tried Arch once. It could not connect to a WiFi with a whitespace in its SSID.
Probably for this reason, I prefer Gentoo to Arch for rolling release from source, but I'm sure it has improved substantially in the meantime.
For example, another user had this problem: ansuz.sooke.bc.ca/entry/254
This issue of Dr Skala has recently been resolved by Michael Biebl of Debian (and Ubuntu). That is progress.