Yes it's a better choice for the platebody but it's not as fast as a rune scimmy/longsword that most will be using (and warhammers aren't even that accurate/strong). I would recommend Rune B axe myself, it has slash and crush options, you can still have a shield, not all that fast, but powerful (especially against steel armour). I would still use the rune skimmy because it would increase your speed of your attacks that would be important because killing more people faster then you could gather food off the ground from them and you would be taking out your opponents faster so they couldnt do as much damage to you so you would live longer.