Mutilate pvp rogue trinket choice 3.3.5

Hello. I played rogue decent amount of time, mostly pvp and understand mechanics, but i never had an access to top trinkets eg DBW or Sharpened Twilight Scale. Now im playing undead MUTILATE pvp rogue and i can buy one of three trinkets: http://wowwiki.wikia.com/wiki/Deathb..._Will_(heroic), http://wowwiki.wikia.com/wiki/Sharpe...Scale_(heroic), http://wowwiki.wikia.com/wiki/Death%...rdict_(heroic).
Considering the build i think verdict will be the best trinket. But DBW has 30 sec buff, what is huge on arena, and STS has 1400AP buff, what is also very delicious. But i never had expirience with arp trinkets and cant calculate their procs profit compared to 288 constant AP and 500agi proc.
Any suggestions? thx

So, nobody knows what would be better?

deathbringer will is the best imo sharpe scale is better for pvp but just my oppinion