Fighter crushes rogue
Consider this: Human Fighter with a 20 Str, 14 Con, 10,10,10,8. Wield a heavy flail or a maul (2d6 damage). Feats: Power Attack and Weapon Focus.
5 str +2 proficiency +1 fighter weapon talent would give you a +8 to hit.
+6 when you power attack.
Reaping Strike...