Which Batwoman villian would choose to have go up against her in pilot?

13 might be right on. Black Lightning was in a similar position and also got 13 episodes. That said, villain wise, if it’s just the first episode, I would love a cameo by Poison Ivy or Harley Quinn but both are unlikely. I’ve heard rumors that, while well-intentioned, Batwoman could be viewed as a villain first. I doubt this however. That said, if they brought in Talia al Ghul played by Lexa Doig, I would flip! It would be a perfect tie in to the Arrowverse and could make Batwoman questionable in her first season alliances.

I suppose if I could choose the Villain, beyond what has already been revealed, I would of selected Alice anyway since she’s a big part of Kane’s story. But Alice is an ARC, a villain just for bashing around, prob Killer Croc. Also lays the ground work for the future involvement anyway, assuming their story line falls in with the 52 comics.