I don't hate any of them, I just like Lindsay the least.

Most Hated Character, EVER!
I Love Brooke & Julian Though <3

Even if I don't care much about Linday and really like Brooke & Julian, for me Brooke's the only one who actually tried to break up LP. Lindsay & Julian both came when LP weren't already together, they were playing fair & squere.
Brooke on the other hand came between LP when there was something going on between them - she knew perfectly Luke was into Peyton & Peyton had feelings for Lucas ("Show us how you really feel. Kiss Lucas"), but still she couldn't stay away. That's why I feel that Brooke came between LP more than Julian or Lindsay.

I actually like them all, my least fave would be Lindsey, but I don't see her as someone who tried to break LP up. If she hadn't realized herself that Lucas loves Peyton, Lucas would marry her. He said "yes" on that wedding. IMO in all that Peyton/Lucas/Lindsey love triangle, Lucas was the only one who made mistake. He's the one who pushed Peyton away, almost married the girl he didn't love, and the only one who didn't realize that Peyton's the one. I actually felt bad for Lindsey, the guy she loved was still in love with his ex-girlfriend and she realized that on her wedding day. Besides, she's the one who gave The Comet to Peyton and told her that Lucas loved her. IMO Lindsey did nothing wrong. She was a nice character, but I guess most people saw her only as an obstacle for LP.

Yeah I agree with others that none of these three tried to break-up Lucas & Peyton (except maybe you can argue Julian was trying to break up Leyton in season 6...but I think he was just being a smart ass & trying to get under Lucas's skin, not actually trying to break them up). All three of these characters were involved in a love triangle with Lucas & Peyton... but Leyton weren't together during the love triangles so these characters couldn't have been trying to break them up, since there was no relationship to breakup.

But I like all three characters. I just like Lindsey the least.

I actually don't hate any of these characthers (but I can see why LPers would) and they didn't try to break LP up, you can see them as "obstacles" in the way of LP's happy ending...

Leyton fan here, I don't hate any of them

I like them all :)

that bitch new leyton had feelings for each other

Manface Lindsey

But I have to agree with the 3d comment!