remus+harry
It's complicated. I'll never like him, and I'll always feel like he was a bastard to me for no reason than I look like dad. But he was a hero, in his own way. He was a double agent, working with Dumbledore to take down Voldemort from the inside. After he killed Dumbledore, he went head-on into double agent mode. He was headmaster at Hogwarts, and there was some terrible things that happened that year. Neville knows more about it, so if you want details, talk to him.
I wasn't there. I was public enemy number one, and me, Hermione, and Ron were on the run, trying to find and destroy Horcruxes so that we could defeat Voldemort. Like I said, Snape helped from the inside.