what is your best gatcha game for 2020 ?

Opera Omnia is awesome! I seriously recommend it, it's by far the best Final Fantasy gacha and probably my favorite gacha ever. The premium currency is super generous (I really hated that about Brave Exvius)-- for example, you get around 80k gems a month and a 10+1 pull is 5k gems. It costs 75k to pity a weapon (15 pulls, but the average to get an EX weapon is around 3-8 pulls) and you get lots of freebies.