I'm currently running a 4 Wizard/6 Cleric multiclass that's doing extremely well. If she has haste support and someone throwing water (mage hand if I don't want to waste a characters action) she does 2x 120 damage save for half damage in a line turn one. If sorcerers can do better does it even matter? That's normally enough to just level most of the battlefield. I also loaded up an old save at level 12 and Sorcerer's Sundries had Fireball, Lightning Bolt, Haste and Animate Dead so I wouldn't have had a problem switching to this build, even if I didn't have most of the scrolls already.
Also last game I was a Lore Bard 9 sorcerer 3 who just absolutely wrecked everything with crowd control, and that was before I knew you were allowed to stack spell DC buffs from multiple sources. There were a very few fights that just flat out didn't allow you to use crowd control at all but she'd steamroll everything else, it was absolutely busted.
