On the same hardware that Ubuntu (and friends) didn't work on? I've been having problems with resuming, and wondered if going to Arch would help, but couldn't think of a real reason why it would.
It's not a fair test; haven't tried a recent Ubuntu, but: suspend to ram and suspend to disk were broken on Ubuntu 10.04 and 10.10 with my Eeepc 900. Arch + TuxOnIce has worked great for suspend to disk for about a year now.