Venenatis
~15-18 kills/hr max
Safespot in 30 wilderness, can teleport out at any time
Vetion
Trident is better DPS against the hellhounds if you don't have an elder maul, it's about the same as a bludgeon. If you're using an anchor/godsword/sara sword, use the trident.
South safe spot:
Closer to 30 wilderness, easier to escape solo/small teams
More common of the two spots, very heavily PKed
~12-14 kills/hr max
North safe spot:
Seldom PKed/scouted at
Close to lava dragon shortcut for easy escape
~12-/hr kills/hr max
Callisto
Southeast spot:
Single combat, easy escape
1 prayer friendly
Extremely slow kills/hr (~8-12 max)
Chinning Spot:
Very fast kills (~20-25 kills/hr max)
~30-35 chins/kill, still makes profit
High risk, no easy escape, multi combat, only recommend if you have a main/alt to trade loot and chins to each kill.