I'd argue different characters for different reasons.
Dumbledore is a good long range thinker, a master strategist, and is willing to suffer short term setbacks to achieve long term goals. While usually right, he admits his failures.
Molly Weasley provides a loving home for her husband and children. Her family may not have much, but there is always room for one more (such as a Harry). She's the absolute foundation of the Weasley family. However, she's also willing to do battle and her part is the overall fight against Voldemort. In many ways, she's the complete opposite of the Dursley's, who have money but begrudge Harry every meal, and have no love for him.
Remus Lupin is a kind, thoughtful professor who both knows his subject well, and is patient with the less gifted students. He knew how to bolster Neville's confidence, and was honest with Harry regarding the boggart, and his reasons for not allowing Harry to fight it. He was also something of a moderating influence on his more troublesome friends (Sirius and James).