Wizard- Pact Wizard. I always liked this archetype, receiving wizardly power from a mysterious source at a cost.
Sorcerer- Razmiran Priest/False Priest. Great for a 'cult of personality' type sorcerer who masquerades as a holy man.
Cleric- Ecclesitheurge. I like focused-casting divine characters.
Monk- Scaled Fist. I like a charisma-based, dragon style-specialized beat-down monk.
Paladin- Virtuous Bravo. Swashbuckling paladin! I love the idea, especially for a paladin of Cayden Cailean.