I am going to begin a new game with a new sorcerer. And this time I want to use a powerfull stun spell, too. So, I'm looking for an advice from the more experienced players... Wich one should I go for?

Symbol Stun is better, since it also incorporates a -4 saving throw bonus, which means it hits more often. However, it is a level higher (lvl 8 spell) than Power Word :Stun ...pick for yourself. If you don't mind devoting one of your precious lvl 8 slots to Symbol Stun, go for it...else pick Power Word: Stun.

Myself, I prefer the more obvious methods...(Abi Dalzim's, Dragon's Breath) and use the convoluted methods to render my Sorcerer invincible. (Refer to Brilliant cheezzy spells thread, by Mystra's Chosen.)

I prefer Symbol as well, just be sure to get it off quick before the enemy closes the distance between the two parites as it will affect your characters as well. For Power Words, I really like Blind.

The truth is that I never experimented with the symbols or power words. And experience taught me that the stun effect is a very difficult one to handle. Especially when it is cast towards your party by a powerful lich. Also, Silence is also cool. I think there is a PW for that, too. Or was it a Symbol. Don't remember. So... I'll try and rephrase. I'm going to solo a Sorcerer. Hopefully, it will be the last one (I finished the game with two Sorcerers already). And I would want to reconsider about Symbols and Power Word (never used them). So... if you think that any of those deserve some attention... Please, tell me.

Powerword Stun won't affect anything over 90 hp, so it won't do anything to a lot of ToB opponents unless you wear them down first. Kill is even worse. Blind has no hp limit and no save, so it will take one enemy spellcaster right out of it (they can't cast any spells blind so they'll just stand there).

Symbol Stun is the best Symbol. Death won't affect anyone with over 60 hp and it has no save penalty. Fear has the same rules as Stun (-4 to save), but you don't want to have to run around and chase people down; Stun leaves them stuck in place so you can finish them off.

Thank you, moran1. I'll consider what you said. I intended to pick Symbol Stun anyway. I'll also think about PW Blind, wich was not an option until now.