If you just want to kill cows fast, the undisputed champ is the LF javazon... With good herding techniques, a few throws is all that's needed to leave piles of charred beef on the ground.. Cheap gear too. :smiley:
I miss the old school Nova/ES sorc in 1.09... She was a real cow fryer..
Blizz sorc is the budget cow killer, just watch the king/avoid the paddock area. Should require super cheap gear and not much +skill if you pump the synergies and don't neglect cold mastery.
High end a pure damage lighting sorc w' infiinity rules for sorcs vs cows.
Overall a fully synergized LF/CS zon will be best but you asked about sorcs so that is a whole other topic.
Just be smart with your teleporting, casting, and avoiding the king's area. Save the hammerdin for baal runs or chaos runs. Also, keep a stack of keys for chests and some open slots for all the jewels and charms that drop. Yeah most will suck but the ones that don't more than make up for the ones that do.