Top three druid routines (healing) are Oracle II Premium, Hermit Beta, and Leaves Premium.
Top druid routine (DPS) is Superbad Premium.
Top two druid routines (Tank) are Superbad Premium and YourRaidingBuddy2 Premium.
Top two druid routines (Moonkin DPS) are YourRaidingBuddy2 Premium and Stars Premium.
Edit; When I clicked on the link initially, I read it said resto druid, but for some reason I completely forgot as soon as I started writing my reply, so I just went ahead and left it as is. There's my opinion on the "best" routines for druid in all four roles for PVE.