This is a hard one. I love 6x13,1x13 I feel it in my heart and 3x13 for Peyton and Ellie. But I had to vote this one. The daddy's home scene is one of my favourite. Episode 13 had some great episodes :p

^ agree about the daddy is home scene <333 but as an episode (in a whole) i love 4x13 <3 .
Also 3x13 is a great episode because of : Nathan&Haley perfect rain scene ,Peyton&Ellie ,Keith&Karen and Mouth&Rachel!

I adore 3x13 for: Brooke/Lucas, Nathan/Haley, Peyton/Ellie, Mouth/Rachel <333
I also love 4x13 for: Nathan/Peyton, Skills/Haley, Brooke, Rachel/Bevin, Lucas/Glenda <33
And also 6x13 as an episode in general :D
I hate 1x13 + 2x13 and I guess I'll love 9x13 because it's the end :(

Also loved 1x13 & 4x13

I'm only picking 9x13 as a symbol. It's the last episode of OTH. Even though, I would have never imagined it like this or I would have love to see LP in it, it's still the end of an era, of a show that will never never be like all the others in my heart <3

Anyway, here's my order :
9x13 (because of the reasons I gave)
4x13 (love it with Neyton; Skills/Haley; Brase; Rachel/Bevin, etc...)
3x13 (great episodes with many epic scenes)
8x13 (Brulian's wedding <3)
2x13
5x13
1x13
6x13
7x13