I have never actually fought any of the bosses in Sunwell, but i have read about them alot. Even after the nerf, Kil'Jaeden should have 9.something million health. That is more than many naxx 25 bosses. What is up with that? Sunwell drops way worse gear. I thought, hmmmm maybe the actual bossfight powers aren't that hard. But his darkness of a thousand souls will still one shot an 80, and getting under that bubble requires alot of coordination. There are many damaging powers in the fight that would still do sustantial damage to 80's. Other bosses in the instance don't look quite as hard, for example you could probably zerg Mu'ru.
Can someone who has done sunwell tell me if it is easier, harder, or the same as naxx 25?
I'm starting to think that Blizzard's reason for the 30% nerf was to not make the hit points of sunwell bosses look so ridiculous compared to wotlk bosses.