D&D 5E (2024) What’s the difference between sorcerers, warlocks, and wizards?

[Tinker Gnome]

The flaw of multiple charisma casters, all being full casters as well.

It really feels like WoTC went crazy with CHA casters once they made the Sorcerer back in 3e. I would rather have the Warlock be an INT caster. Or even change the Sorcerer to a CON caster.

Also, back in 3.5 I felt that the Dread Necromancer should have been an INT caster but they got slotted into CHA.