I love Slackware. The primary reason is that it doesn't rely on the GUI. It's there when you need it, but I much prefer doing things on the command line. It boots straight into the prompt, and I love it that way. I've also found Slackware to be much faster, easier to use, more configurable, more reliable, and generally better then any other distribution I've tried. I keep trying other distro's, but I keep coming back to Slackware.
EDIT: I didn't mean to take over the thread, I just thought it appropriate to mention ARMedslack. I apologize for any inconvenience.