I prefer Modo 301 because it's intuitive and powerful, but I also use Lightwave 9 and Zbrush 3 semi-frequently for other reasons. I never sculpted much in real life, and Zbrush is too much like a lump of clay on the table for my tastes. However, with the controlled precision of subpatch modeling in Modo, I’ve gotten good results, and Zbrush rules for surface textures and morphs. Lightwave is for rigging and animating (not that I've done much animating at this point.)

Download my free stuff here: http://www.renderosity.com/homepage.php?page=2&userid=323368