Mandrake 7.2 at home and RedHat 6.2 at work. And this doesn't count, but Mac OS X too (which is supremely slow, even on a dual G4 500 Mac with a gig of RAM).
I've tried other distros - Caldera, Corel, Debian, Gentus but I have always come back to Mandrake. It makes it easy to be lazy.