You know how most people will say combat swords for PvE and combat maces for PvP? Those are two completely different builds, and I bet you dont like stepping out of an arena to pay (possibly) 50g for a respec for kara or whatever.
I was thinking about a build that has 3-4 points in both those weapon specs and just switching weapons. Maybe have a 2 swords, 2 maces, or a sword and a mace. I came up with a 19/42/0 build that has 4 in each with DW spec, BF, combat potency, and AR. It doesnt look like you give up a whole lot for it.
Let me know what you think, I welcome and criticism.
http://www.wowhead.com/?talent=f0eboxhZG0Ez0VpL0hRt