Disclaimer: I do not own TDI, TDA or TDWT. If i did, Courtney would be dating Noah, Heather and Ezekiel would be a couple, and Chris would suffer even more.
There are many reasons of why Courtney should be with Noah instead of Duncan. Ten of them are:
1* They're both intelligent and sarcastic
2* They both have the same interests
3* They're both class presidents
4* Courtney would make Noah feel emotion by playing her violin
5* Do you honestly think that Courtney would rather live with a criminal punk who could ruin her future, instead of someone who could actually improve it?
6* They both have disdain for their teammates
7* They both have dark skin and brown hair.
8* They both wear sweater vests
9* They both like to read books and high culture
10* They look so adorable, even if their emotions say otherwise
Here it is. Suck it DxC fans, if you want to destroy me (pulls a gun), i dare you. I'll kill you all. Except Kobold Necromancer, he's the best!