I dislike triangles because they're seriously overused and unimaginative. It's like, need emotional drama? Throw in a love triangle. Need to fill out a couple chapters? Love triangle. Need a B subplot? Love triangle. How about introducing a new character? I smell a love triangle!
If it was a TRUE love triangle, then the solution would be obvious.
But, since romance seems like an especially strong subplot in YA, I doubt that either true triangles nor threesomes will appear. One of these days, someone needs to write an actual love triangle. Most of what I see is either a V or a polygon that got punched in a face and cracked a few times.
Stories require conflict, or else most of the audience will wander off. Love triangles are one way of providing such, with the extra added benefit of a potential, "Boy, I wish that were me!" reader insert.
While some genres (such as romance and chick lit) are built around this trope, and others (e.g. supernatural fantasy and space opera) have been willing to embrace it, how well it works ultimately depends on striking the right balance between the reader's expectations and the writer's skill.
I don't like them, and I have a feeling the people that do love to indulge in real-life petty drama as well. Then again, I don't really like romance in the books I read in the first place. If it's there, I would prefer it to be minimal and not a huge component of the narrative.
:$ I don't like them; I think they're WAY overused, and pretty boring, especially in YA. You know, the girl is always caught between Mr. Snarky Mysterious Smirker and Mr. Nice But Boring...the triangle is never approached from any other angle. (Like, what if the main character was one of the 2 points? or, you know, if the two guys had actual personalities? Or if it was an actual triangle and not a V? grrr.)
But then again, I don't really like romance in general, so maybe I'm biased?
YES, they really do :$ I mean, why even call it a triangle if it's really one person trying to choose between 2 others. A real triangle would be nice. There's probably a book with a real one out there ((:
I personally don't think books are bought just for the love triangles, but for the "bigger" picture: what came before that. Like Hunger Games. Though I can't stand the series (don't ask me why), it was a success because of the general idea. Then came Peeta vs. Gale over Katniss. According to the reviews, people hated this triangle, mostly because it was a distraction from the plot (but the plot became watered down towards the end of the series anyway) - it had very little purpose in the series.
If there is going to be relationships in books, I think it would be better to tread it as it would in a real life sinario. If you fall in love with someone and he/she turnes out not to be the one, you move on to the next till the right person comes along, not bounce back and forth and toy with two people like a mad dog in heat. Overall, the love triangle is terribly overrated on a personal note; I will never read a book, or future books of a series, if a love triangle is installed. It just ruins the story for me.