God knows how much I used to hate her, during seasons 1-5. Now she is one of my favorite characters

Normally my answer would be Brooke, because although I liked her in seasons 1-4 I absolutley LOVED her in seasons 5-6 I thought her attitude, personality, and maturity were amazing! But then she went down for me in season 7-8 :( However, Haley I LOVED in season 1 then after that she just became alright and I really started to like her again in season 7.

well normally brooke! she changed into something better already in season 2 , BUT then she changed back again in season 7 .

And Peyton lol.
I mean I hated her in season 1 and liked her in season 6 xD.

Nathan aboselutely!

Brooke was so much better in her HS years S1-4.
Haley hasn't changed all that much.
Peyton I'm not sure when I prefer her actually.
Lucas He has changed some in every season, it's kinda been back and then forward again. I liked him the most in season 2-4 I think.
Nathan He has changed a lot and for the better.

Just compare now Nathan to pilot Nathan <33

well normally brooke! she changed into something better already in season 2 , BUT then she changed back again in season 7
Yepp. I'd say Brooke but since she's changed again for the worst I have to go with Nathan =) He definitely matured the most.

why's everyone saying brooke has changed for the worst?

he went from idiot jock to freaking amazing.

Brooke, always. I'm really curious to know why people think she changed in worst? I'm not bashing or insulting, I'm just seriously curious to know the reasons...