What to do with Bunny Camilla ?

Hi guys !
I got 2 Bunny Camilla from the banner, Atk+ / Spd- and Atk+ / Res-.

Which one should I keep and with which build ?

Atk+ / Res- with Blade or Raven, or the Atk+/Spd- is better for Raven ?

Or should I build 2 Camilla, the Spd- Raven and the other Blade

What do you think guys ?