Originally Posted by
Raugnaut
As stated previously, it tends to be much easier to solo most fights as Disc. First, most old content does NOT have hard enrage timers compared to dps-output- with the nerfs, 50k dps is enough to solo 90% of pre-MoP fights. (Easily doable as disc). In addition to that, most old content DOES hit hard enough that the self-healing as shadow begins to lag behind- if you are needing to flash heal every 3 globals, you might as well go Disc.
In addition, Disc can not only put out bigger shields more often (Inner FOcus, Spirit Shield, ect), but the big shields can help negate a large number of mechanics (Saurfang's self healing, LK Infest, ect) much better then Shadow's weak healing abilities.
Finally, Disc's ability to damage multiple target's isn't THAT bad compared to shadows- Disc still has SW:P and Mind Sear, and both are only 20% or so weaker then Shadow's version.
In addition, Disc can adjust themselves a bit if they are having troubles with damage-Reflective Shield will cause 70% of PW:Shields absorbtion to be dealt to the target (Considering that you can get 200k+ shields, thats quite a bit for 1 global), and Smite will increase the damage dealt by smite by ~15% overall (20% when the Holy Fire/Solace debuff is on the target), which can be decent for short-term burst periods that are found often during older content.