Voted 2, 3, 4, 5, 6, 7
Not sure about traps/lockpicks. Bestiary, only as long as it's a small xp bonus.
I'm not playing the beta, so I don't have a precise idea of how the bestiary works at this moment.
What I'd like too see it's for the bestiary entries to unlock combat bonus. You know more about the monsters, you should be able to fight them better. And you could get poison/antidotes/potions/crafting recipes. Extra encounters "you can now track this kind of creature...".
The bestiary page should be unlocked progressively, to allow different reward tiers.
Stuff you could need if you fight often, or fight often certain creatures, negligible if you don't.