Wow. I didn't believe this combo would be so difficult but now at the 1700's I'm running into it constantly. I think the only way you're going to beat it is by going after the war, as the druid can get away, turn into a bear, etc etc.
But if I don't go for the druid... I get CC'd out the ***: Intimidating Shout (non dispellable), Cyclone x2 (or three some times), Bear Charge, Bash. Even with a trinket that's close to 25 seconds of CC!
Unlike my previous pally/war rant I don't believe they are overpowered against every combo. But druid/war is definitely a tough one for a rogue.