I love 6! I've written him in two out of the three fics I've produced for Doctor Who. I think the problem with his fanfic popularity isn't his characterization, it's the fear of writers thinking they won't get any attention with Six stories. He's something of a red-headed stepchild in and out of canon.
Sixth Doctor/Rani Chandra/breaking the rules sounds like fun!
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Sixth Doctor/Rani Chandra/breaking the rules sounds like fun!