You know why Sterek is so important?
Because there’s one thing that happened between Stiles and Derek that never happened in any other ship on the show (expect for Berica, btw).
Derek was the person that not once doubt Stiles or left him hanging. When they met, Derek doubt Stiles’ habilities, and his capacity, yes. But he always believed in what Stiles said and not once he turned his back when Stiles needed him - something that both the Sheriff and Scott did, the two closest people to Stiles.
Stiles, one way or another, always knew there was something more going on with Derek. Even all the times he thought Derek was guilty - in all those times, there was a link between Derek and the villan, and that’s something Stiles realized - he figured out the story between Derek and Kate, after all. Stiles always paid attention to Derek, because he always knew Derek had more to offer than people gave him credit for.
And, the most important thing, they both know how to handle each other. Boyd’s death, Stiles - who never shuts up - was the one who offered Derek support. When Stiles couldn’t make it to his game and lied to his dad about it, Derek called him out on it, but he dropped it as soon as he realized what Stiles was sacrificing (something that Scott himself didn’t sacrifice on that first game). Stiles gave up the wolfsbane protection on the club when Derek told him to do it, even if that was the plan, and even if it was the one thing he was proud of. They saved each other’s life, besides everything and anything, even when they hated each other, even when they didn’t trust each other, even when they had nothing to gain - they just needed to hold on to the other.
You can tell me my ship is never going to happen, but you can’t show me one fucking ship on that show that has something as beautiful and important as this.