Who is your favorite fanfiction author?

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Mine would have to be Kasia on ff.net, although I haven't read at least one story from every ff author on there. There's way too many for me to wade through and not all of the stories and/or authors write well enough for me to read them. I mean I can't take the chatspeak/shorthand for words like 'u' in place of you, or '2' in place of to, too or two. I understand if someones first language isn't English as mine is if they write in English... at least if they have a beta reader it's still good, though I've found that even beta readers can miss a few mistakes too. So, who is your favorite ff author, either from fanfiction.net or adultfanfiction and why. What was the best story of theirs you've read so far?