Post-patch Raiding

[Lissa]

I still say Kael'thas in Tempest Keep has this distinction. That was the premier raid encounter of TBC. Kil'Jaeden's got the cool Ragnaros-style-holy-crap-look-at-that entrance working in his favor, but the complexities of the Kael'thas fight, the legendary weapons you use against him and his posse, and the oh-snap-here-comes-the-Pyro moments can't be topped.

Both fights were insanely hard before their respective nerfs and using appropriate gear levels, but Kael'thas is just cooler. :)

-Bolty

While I haven't seen K'J, I have to agree that up to Sunwell, Kael takes way more attention and everyone doing what they have to do when they have to do it. Vashj I would say comes in a close second. Illidan seems like a let down in comparison (phase one the onus is on the mages to get the parasites dealt with, phase 2 is the two Flame tanks paying attention and working in coordination until one flame is dead, phase 3 is the boring phase, phase 4 is the DPS getting those Demons down ASAP before they take out people, phase 5 becomes the onus of the healers and the Tank blowing cooldowns at the right time or trying to drag over the traps and the Warlock tank reorientating to be at maximum range for the next phase 4). Sadly, Archimonde is people staying alive and paying attention to stay alive, outside of that, it's a straight forward tank and spank.