Strengths:

• Great burst damage
• AoE fear + Blind
• Silence

Weaknesses:

• Line of sight
• Wing Clip
• Easy to kite with Abolish Poison
• Priest goes OOM really quickly
• Can prevent lots of potential burst damage with Feign Death and Silencing Shot

Who to keep pet on:
Shadow Priest

Possible Rogue Talent Spec's (Standard Spec's):
Rogues have several Viable Builds

Possible Shadow Priest Talent Spec's (Standard Spec's):
Shadow Burst

Keep Pet/Drains on the Shadow Priest, Scatter the Rogue off you as much as possible, make sure your Druid is paying attention to the SPriest, what they like to do is Fear your Druid after he trinkets a Blind. Your Druid has to be mindful of where the SPriest is at all times, he cannot tunnel vision on you. If you see a SPriest coming towards your Druid and you know your Druid won't have enough time to get away obviously Silencing Shot him before the Fear goes off. Individual things like that separates a good hunter from an amazing hunter.

Now you can't make it easy for that SPriest to get a Fear off on your druid, 90% of the game that SPriest will be reapplying Shadow Word: Pain, dispelling all your HoTs/Abolish Poison, all while the Rogue is beating on you. That Shadow Priest, if he's smart, will not even cast anything on you until your Druid is feared (which is usually after he trinkets Nlind) giving them 8 full seconds to unload on you which is enough in most cases to either kill you or get your Druid too far behind on heals to catch up.

Good SPriest/Rogue teams target switch, so don't be surprised when they decide to leave you alone and run after your Druid after he comes out to heal you. Your Druid should always be ready for the switch, when I play good double DPS teams I know if they go for me first and fail, the next game they will try going for my Druid. Once they figure out which is the weaker of the two they usually stick to that strategy. In those situations you need to be ready to save your Druid, only Scatter a Rogue who has Evasion up if you absolutely need to have the Rogue Scattered at that moment. Usually your Druid can live long enough to last through that Evasion. Having a Scatter miss when that Rogue pops Evasion makes me cry. So unless you NEED to Scatter, don't risk wasting a 30 second cooldown which could make or break the game.