Here's the beef

Broken Tier: Yukari, Komachi, Yuugi (Guess: Yuugi > Komachi > Yukari)

Top Tier: Meiling, Keine, Eirin, Yuuka, Kanako, Byakuren (Guess: Eirin > EX-Keine > Kanako > Yuuka > Meiling > Byakuren > Keine)

High Tier: Koakuma*, Sakuya, Letty, Yuyuko, Ran, Hina, Sanae (Guess: Yuyuko > Ran > Letty > Hina > Sanae > Sakuya > Koakuma)

Upper Tier: Patchouli*, Merlin*, Reisen, Aya, Nitori, Iku, Rin, Utsuho, Shou, Yoshika (Guess: Iku > Utsuho > Shou > Aya > Reisen > Patchouli > Yoshika > Nitori > Rin > Merlin)

Middle Tier: Alice, Mokou, Minoriko, Nitori, Ichirin, Hatate (Guess: Alice > Ichirin > Minoriko > Mokou > Hatate)

Lower Tier: Reimu, Daiyousei, Lunasa, Mystia, Lily Black*, Momizi*, Yamame, Parsee, Satori, Kogasa (Guess: Daiyousei > Satori > Kogasa > Reimu > Lunasa > Lily Black > Momizi > Mystia > Parsee > Yamame)

Weak Tier: Cirno, Flandre, Chen, Lily White, Youmu, Kaguya, Sikieiki*, Koishi, Murasa, Nue (Guess: Nue > Sikieiki > Kaguya > Murasa > Koishi > Lily White > Youmu > Chen > Cirno > Flandre)

Bottom Tier: Marisa, Remilia, Lyrica, Tewi, Shizuha, Suwako, Tenshi, Nazrin, Kyouko (Guess: Tenshi > Marisa > Tewi > Lyrica > Shizuha > Suwako > Kyouko > Remilia > Nazrin)

Concave Tier: Rumia, Suika, Wriggle, Medicine, Kisume (Guess: Suika > Rumia > Wriggle > Medicine > Kisume)

*All over the fucking place. Any of these could arguably fall anywhere between Keine and Suika (and, in Koakuma's case, even up as high as Eirin).