I have not done sinestra or alakir yet, but was wondering what order people would consider the difficulty of heroic bosses in Cata (25 man).
I would guess it might look like the following (Hardest to Easiest):
Sinestra
Alakir
Chogall
Nefarian
Twilight Council
Omnotron Defense System
Valiona & Theralion
Magmaw
Conclave of Wind
Atramedes
Maloriak
Chimeron
Halfus Wyrmbreaker
Agree/Disagree? Discuss...