I like AUs, specifically the "for want of a nail" or "makes a different decision" types. They're probably 90% of what I write, even couting the ten million little snippets of things no one will ever see. They're kind of why I got into fanfic in the first place, and they're one of my favorite things to read. My mind has naturally gone to "what ifs" long before I ever got the idea to share them with other living beings.
They are much easier in Star Wars. In SW, I start with a weird little head idea, like "Luke and Vader are talking on the phone!" followed by "why?" "how?" and "I really don't think they call them phones in the GFFA." I focus on a few characters- what's Luke up to? Vader? Chewie? Han and Leia? They'd better get together. I don't write stuff where Han and Leia don't eventually get together... And since I write and read mostly OT, it's a nice, short time zone.
So far, I have gotten ravenous angry plot bunnies for two comics AUs. Both of them, for reasons only my subconcious knows, are Marvel, which is not even my favorite company and which has almost all of the few extant characters in any of my fandoms I actively hate. The one that's currently biting the most started as a tiny teensy little couple of paragraphs I posted on here a while back. And I meant for it to stay kind of tiny.
But first I had to flesh out some of the supporting characters. Billy, Teddy, Tommy, might as well throw in the rest of the YA while I'm at it, but that means filling in the human side of the political climate, and then what's everybody else up to? I might as well throw in a few more mutants to be fleshed out some, but not too many more, just the ones who'll have lines...
Yeah, right. I'm now getting together an alternate backstory for Psylocke (Sammy, I'm giving her your hair) who by the way will not even appear. Also the relationship count has expanded to pretty much every couple I've ever shipped ever a little in the MU ever, even though I still can't write romance to save my life, and also I think Professor X might kind of be evil now.
Maybe this is the problem with having such a big universe, with so many writers, many of whom disagree with each other about the characters so strenously? Would Star Wars be this difficult if I ever got into the EU? Aren't I thanking my lucky stars I never got into the EU?
Anyway, this is basically a vent post, but any/all advice is welcome, etc.