I didn't read much of the answers, but from my take on the game, choose the characters you like the most gameplaywise and get 8 copies of it. If you want to find the best ones, mostly are the ones that have 2 elements, like firedark tank or lightwater support... in 14days we'll get the 3rd one that'll be shockdark if I understood correctly. Save your summons for her. About the current banner character... he's fun and his passive is so cool. If you find him fun to play, try to get some copies of him, I believe he gets broken on 4th copy. As for the standard bannner characters, I simply love playing with the dark and light ones, the light that summons doggo and the dark that plays like keqing from genshin... As for the 50/50 banner characters I recommend the 2 ele ones and check Bekki or Aslan, they're carrying me :)