People often write about breakpoints and I get that it is also important but aside from ranged weapons I never cared about that on melee. You just have to swing one more time at worst but usually that enemy was stabbed/poisoned/set on fire before you even have a chance to hit him because your damage overlap.
Attack speed is much more important because on higher difficulties your attack window is shorter because enemies attack faster.
Now lets talk about BBB nerfs/bufs on two classes, RV and Merc. I love executioner sword on merc and played it often. I used 10% speed bonus from weapon and charm. Now after nerf to attack speed it feels very clunky. You see it is not only attack speed but also movement speed that was nerfed because of exe light attacks are now slower. Before you start arguing with me play few Cata games with exe and then with spear (random people no premade). You may have better damage on exe still but you are now very vulnerable and there is no competition for me. I have not tested other weapons yet but for me staying alive is more important than green circles.
Yesterday I played few games as RV and used greataxe and handgun. After RV changes + weapon buffs i really like what they did. I was always fan of greataxe and with bonus attack speed from ale it is safer to use. Handgun also can shoot faster now and is fun to use. Before I would said that RV was the worst class in game but now he is fun to play. You could use dual hammers before and crossbow but I prefer greataxe.