I have not found this specifically discussed yet in the thread, so here we go. What would you consider the best PVE spec/rotation DPS wise for a fight where it is at least risky if not outright stupid to get within 8 meters of the target, i.e. a pure ranged fight. I am explicitly not talking Entity only. Instead consider it a general theoretical thought exercise with practical applications, the 20 yard demonologist. :)
The best I could come up with was the classical Havoc/Conflag hybrid, something like
http://goo.gl/BBoqH2, and as Rotation go
Hellfire Stream - Shockstrike - <gap> - Hellfire Stream - Shockstrike - <gap> - repeat
where <gap> is to be filled with whatever instant is currently available (Shock, Shock lance, Unholy Hate, Pacts, etc...). If no filler is available, cast the next Shockblast immediately and don't wait for Hellfire Stream. Chaotic Blast when needed.
Is there really nothing better or at least compareable out there?