Monk
Bad ability spread.
Paladin
Bad ability spread.
Ranger
Bad ability spread.
Rogue
Constitution and Intelligence could work for an Arcane Trickster, but without a Dexterity increase you’ll lag offensively. Saving Face will help enough to offset the bonus to attacks if you’re resting often enough to recharge it, but your AC will lag behind other rogues and your damage will likely still be lower.
Sorcerer
No Charisma increase.
Warlock
No Charisma increase.
Wizard
Light armor and Saving Face are fantastic defensive options. You no longer need to commit resources to Mage Armor, and Saving Face can be useful in all sorts of situations, including on saving throws to maintain Concentration.
