#1: Dabi aka Touya Todoroki (no other character beats his charisma and flair, love his attitude, and I'm here to see what he'll end up doing)
#2: Overhaul (though he also creeps me out, I find him intriguing)
#3: Himiko Toga (I empathise with her, I think her ability is cool, and I hope she gets help)
Notable mentions.
I think Deku is a good main protagonist, and I don't often feel that way as I often think shounen protagonists are boring and/or annoying.
I have a soft spot for Bakugo, even though he's a jerk, he's also just a kid that's trying to act tough.
Aoyama is hilarious to me.
Tomura Shigaraki is growing on me, he's a 'love to hate him' kinda guy.