PVE nerd question: Ferocity vs Monster Slaying

[Rektafor]

Ferocity vs Monster Slaying

5/5 Ferocity 0/3 Monster Slaying OR
2/5 Ferocity 3/3 Monster Slaying,,

what do you guys think

[Hawt]

Monster Slaying is a good talent, but it was bugged sometime ago. You couldn't gain 3% crit bonus for monsters. Not sure if it's fixed yet.