i like arch/arcopro because it compiles on your computer, it isn't a pre built kernel.
i'm also fond of openbox .
so it runs just as well on a 2008 1.6ghz duel core as it does an more high power cpu's with more cores.
it is the speed that gets you, you don't wont to use it to edit movies. it will do it, but it will take forever.
one thing i do not like, is the way the installer works, it downloads all packages, so when the install is done it is all ready
updated and ready to go . it takes a while to download and compile everything .