for many many years my favorite was always orihara izaya but ....recently nagase iori stole my heart.
both characters are pretty similar imo and i relate to both of them (garbage humans with heavy depersonalization issues)
probably shinji from neon genesis evangelion. i see so many people hate him for things he did or didn't do throughout the series but he felt..i guess real is the best word? i dunno i've always liked him as a character
akito from kodocha. it was one of my first animes, and i absolutely fell in love with his character and backstory. nothing will never replace him for me
nagito komaeda from super dangan ronpa 2. it's actually ridic how much i love this ****er. a lot of people despise him but i just can't help but love him lmao. my second fav would be kaneki from tokyo ghoul. this ***** put me through hell and back and nothing even physically happened to me. i love him so much my god