We've gone over the power-level argument for the fighter and it has gotten somewhat heated (especially with the tidbits released by WOTC) but I'm wondering, what about the actual magic using classes?
I mean, take this image from 2E.
The guy's bringing down a CASTLE by himself. I'll admit, I've always judged fighters against images like that but 4E is a new game.
Do we want our 15th level mages being able to bring down a castle by themselves? At 20th level, how powerful should magic be in the hands of players?
Now, this is a little harder since frankly, we don't really HAVE that many sources to draw inspiration from for magic wielding protoganists (I mean, of the D&D influences, how many star a magic wielding protoganist?)
I mean, take this image from 2E.

The guy's bringing down a CASTLE by himself. I'll admit, I've always judged fighters against images like that but 4E is a new game.
Do we want our 15th level mages being able to bring down a castle by themselves? At 20th level, how powerful should magic be in the hands of players?
Now, this is a little harder since frankly, we don't really HAVE that many sources to draw inspiration from for magic wielding protoganists (I mean, of the D&D influences, how many star a magic wielding protoganist?)