For levelling get your 31 pts in darkness. Wither is far too good in low level pve and pvp once coupled with harnessed darkness.
Deathfield has its uses at max level, in a rated set-up, as its a great long range interupt for VS/Novare/Civil war. If you are going to go that route 24/0/17brings more utility then 30/0/11.
From a pure 1v1 pov 31/0/10 wins out