Hmm... Combat Swords?Follow

The last time i was combat swords was lvl 65 i think. Currently 31-3-27. Now that i have all the merciless armor, i was going to upgrade my season1 offhand to merciless on tuesday. But i was considering getting the offhand sword instead and working toward a combat sword spec. I remember it being really nice pve, and in 1v1 adrenaline rush = win. Might not be as handy in BG or world pvp, but i was thinking more particularly in the arena. If i can pop adrenaline rush every game, might this equal a win every game? Or.. has combat swords changed much in the past few months? Has anyone tried combat swords in arena? I want your input. Which do i want? the dagger or sword on tuesday?