Haven't finished Season 3 yet, so no spoilers lol.
Hopper was always a hero to me, because of his strength in Season 1. He was pretty much a deadbeat cop at first, because Hawkins was such a boring place. But he spring into action, no hesitation, when Will went missing. And I was so happy when he took in Eleven.
Dustin gets second place, because he's Dustin, and that's reason enough.
HMs: Eleven, Jonathan Byers, Joyce Byers