dcollins said:Case study, say a 12th level Wiz using fireball on 12th-level Ftr (with 14 Con). 1st Edition: damage 12d6 (avg. 42, note no upward limit on dice in 1st Ed.) versus Ftr average 68 hp = 62% of Ftr hp. 3rd Edition: damage 10d6 (avg. 35) versus Ftr average 113 hp = 31% of Ftr hp. That's reduced the effective damage by exactly half, and this is repeated all up-and-down the line for every one of the wizard's damaging spells. Meanwhile, say, the starting one-handed bastard sword damage for a 1st-level fighter has doubled from 3.5 to 7.5 points on average. Total damage by proportion is, in very broad terms, that the wizard has had his output about quartered compared to the fighter from 1st-3rd edition. There's very little case to be made that the wizard has gotten anything but much weaker from previous editions.
In short, the hugely improved ability bonuses and hit points for all classes, with wizard spell effects overall capped or reduced, is much, much more important than the entire list of minor benefits that was posted above.
Wanna do a case study on how that 12th level fighter would have fared against a spell with a Will save then and now? Let's make him a Dwarven fighter with high Con, to make this as fair and unbiased as possible.

Who cares about how much damage Fireball does? The whole spell system changed.