Yes it is. To consider your propotion, and complication rate such a non-union, I think you should do femur.
Are you white? I know normaly white has longer tibia and who want to do CLL most likely to do femur.
I am japanease , and my right leg has bow leg (valgus),generaly speaking aisian has shorter tibia, not to mention short leg.
so our first choice doing tibia ,its also dependent of human race.