I have a question...
What's your favorite character (one BSB one original) from someone else's story?
I'm having a hard time narrowing this down to just one of each!
If I'm being honest, the first thought that popped into my head was Nick and Ciara in "Cover Me With Dreams," which would kill two birds in one stone! I've gushed about that story on here plenty of times; it's probably my favorite fanfic of all time, and the reason for that is the characters. Nick in that story represents everything we love about Nick and every different version of Nick all rolled into one. We get young cute Nick, older messed up Nick, goofy Nick, sexy Nick... The author, Heidi, had Nick pegged, and he's just so endearing! Meanwhile, Ciara is an interesting female lead; I like her and enjoy reading parts about her even if Nick's not in them. She was based on a real person in the author's life, and I think it shows in how realistic and multi-layered she seems.
Two of my other favorite original characters are Amanda in "Something Beautiful" and Kara in "The Market." I like female leads who are likable and relatable, not perfect Mary Sues, but not annoyingly flawed Anti-Sues who try too hard not to be perfect either, and Amanda and Kara, as well as Ciara, fit that perfectly. Amanda in SB was especially interesting BECAUSE she was so flawed, or at least was doing something awful for a good chunk of the story, but was still a good person who felt guilty about it deep down.
I also love how Brian and Nick are written in that story, as well as in "Borrowed Time," but I think my favorite Backstreet Boy in a story recently is Steph's Nick in "Running Up That Hill." He's SUCH a mess, and I'm so glad Nick's not that way in real life anymore, but I just love the way that he thinks. Steph does such a great job getting inside his head, and his scenes are usually my favorite part of every chapter because they're so entertaining.