Which rogue one toons are best?

I am currently at a loss when it comes to choosing which rogue one toons to work on primarily for tb. While I do have chirrut gear 12 since I used him in my squad arena team at one point and have baze at gear 10 but only 5 stars they handle most of territory battle with ease. I have cassian, k2s0, and jyn at 7 stars with cassian and jyn and gear 7 and k2so at gear 9 and Zetad because I thought ways back it was helpful for him to get protection boosts given he's a taunting tank. While jyn is no doubt the best and only choice for a rogue one team leader who would serve better on this team?