Yes each class has their own stat points to put in.
Many focus on STR and PIE since those are the auto-attack bonus stats. PIE also may factor into some weaponskills' damage and will help to land additional effects from combos and whatnot. I would have been an advocate for STR and DEX though, but with the patch today (1.22a) there are no more accuracy penalties... so PIE should be fine and may boost damage ouput.Check my signature for a link to my blog about stats.