Druid Weapon Choice

[PeWBOOMPeW]

Working on 13druid/6barb/1fighter
Feats are tight, so wondering-What weapons are there really for druids?
Going for maxed doublestrike, three natural fighting, improved shield mastery, running in wolf stance.
Need to know what imp crit i should get, or if the common concensus of 6 monk rather than barb is the best


EDIT:I realize now druidic oath only applies to shields and armors. I am stupid, and accept this, and have taken the proper disciplinary actions.