Druid BiS gear from ICC Moonkin Raiding Gear in short easy to use layout. "Best" gear is just first. Feel free to use it - best use is to use HTML editor to mark items you have - after that you can easily see what gear is upgrade. Look to original list at Gray Matter for numbers.
Looking at T10.5 it's easy to see that you should have Head + Shoulder + Chest (as they are atop of list) - other item you can choose based on your actual gear mix (to keep 4 pieces bonuses).