Wonder Woman as Supergirl's Mentor and Guardian
I've always wondered how Diana and Kara would work if they had a stronger mentor/older sister dynamic.
A lot of people naturally see Superman as the ideal guide for Kara, but I've sometimes felt that Diana could bring something different. Clark is family and also the symbol Kara could end up comparing herself to. Diana, on the other hand, might give Kara more room to grow into her own identity.
Diana has compassion, wisdom, leadership, and the experience of being both a warrior and a protector. I can imagine her helping Kara through the emotional side of growth as well as training her physically.
I've always liked the idea of Diana taking Kara under her wing as a big sister or mentor figure rather than Kara feeling like she has to become a version of Superman.
What do you all think? Could Diana actually be a great mentor for Kara?