How would you rank each demon sorcerer based on their raw power (not counting talisman magic or anything)?
I would go:
Tso Lan: Can pull the Moon out of orbit. Nuff' said.
Shendu is probably the most verstile of the demon sorcerers due to his feats outside of fire breath. His raw strength and size is also a bonus.
Bai Tza: Her ability to create tsumanies and flood cities earns her a high spot. She is also a dangerous combatent in her own right.
Dai Gui: Brute strength and elemental powers are pretty damn powerful.
Tchung Zu: Probably the most offensive power at any given moment, though not anything else.
Xiao Fung: Wind blasts are savage, but no hurricanes or tornados.
Po Kong: Sheer size is good for causing destruction and damage soak, but nothing else.
Hsi Wu: Probably the best at infiltration, but not so impressive otherwise.