I really admire your ability to pull psychologically realistic and nuanced readings for Anakin and Obi-Wan out of what we've been given: ex. noting the discrepancy between "father" and "brother" as ways of seeing their relationship. The Clone Wars is definitely a better text for Anakin development than the films, but even so, I think your generosity with and attention to the canon does a lot of good work in bringing to life a somewhat sloppy body of work (at least compared to what it could have been).

One question:
...neither of Anakin’s biological children show his particular gift for mechanics.

Really? The farm boy so bent on power converters doesn't have the gift for mechanics?

Seriously, while I grant the Star Wars movies don't devote much time to actually showing Luke doing mechanic stuff, I'd always assumed that being mechanically inclined was about his third-most natural talent after being Force sensitive and being a great pilot. I always assumed they pushed Anakin's mechanic skills from The Phantom Menace on to push how much father and son are alike. Different readings, I guess. :)