Random memes

Made my word count, finished the story, so - Choose from one of the below memes, and I'll answer it.

a. Give me a pairing(/threesome/moresome) and I'll tell you my favorite get-together plot

b. Pick a character and I will give and explain the top five ideas/concepts/etc I keep in mind while writing that character that I believe are essential to accurately depicting them

c. Tell me a pairing, and I will tell you:

1. When or if I started shipping them:
2. What I think their challenge is:
3. What makes me happy about them:
4. What makes me sad about them:
5. What moment I wish had never happened:
6. Who I'd be comfortable them ending up with, if not each other:
7. My happily ever after for them: