https://www.fanfiction.net/s/6186041/1/Mobile-Fighter-Evangelion has completed after 6 and a half years.
Its an AU rewrite of Evangelion, if Eva was a hotblooded Mech anime rather then a mindfuck, and its fucking brilliant. It has Best Gendo, by far. It stays true to its plot and is super consistent, every character is awesome, there is incredible writing skill (especially use of foreshadowing), and it actually makes internal sense.
Very much worth a read.