So far I say season 5. Why? Well I think he is being an ass to Peyton and Lindsey both.

i can barely stand him right now!

I have to say this season so far he is acting like an ass this season.

i have to say this though, cuz i love him in all the seasons

IT's so 5 UGH =O

i don't think lucas has done anything wrong this season. i like him better now then in season 4

season 5 cause he is so rude 2 peyton n i really want leyton 2 get bac 2gether.

Season 5 .. Because he Said i hate u to Peyton !! When we all know he Truly didnt mean it but he still said it anway !! Gad Luke watch what u say man !

he's an ass

He was a jerk.
I loved him in season one because of the laley friendship<3
I loved him in season two because of the laley friendship<3
I loved him in season three because of what he did to stand up to nathan for Haley (the laley friendship) and because he was with Brooke<3
I loved him in season four, even though we didn't see that much laley I loved him for what he did with Glenda. That girl was so sweet<3
Season 5.... The only reason I respected him is because he was a good guy to Haley and Jamie but besides that... no. Get your Act together luke.

Hes a g8 actor n i love him in all!

he was the bigest jerk in 5 season

LOOLZ HIS HAIR

s4 his hair was nasty but s5 he was a jerk.

he was an ASS in season 5! ;/ I want old Luke from season 2&3 :(

I really didn't like him in season 5

season 2 & 5

Lucas was a jerk in s5

and season 4, when he was with peyton. eww. lols

Because he was a jerk.
Then season 2 because I don´t think he was himself at all

Because he let Brooke go just like that.

It's funny how everyone relate likability and dislike ability with who he was with romantically...

I really like him in all, but if I watched it all again and thought about for a while I could probably choose one Season where I liked him less than the rest, but now I don't know