I found it hard to rank the Cures during the amnesia arc due to Purirun being... well, not all there. I feel like ranking them now that things have stabilized more.
1. Cure Kiss - More loving towards Purirun than selfish... though still pretty damn selfish in her desire to be number one in Purirun's eyes and hysterically stubborn in her selfishness, what an interesting character. I do feel like the show does need to address her obsessiveness head on at some point, but I don't mind the show stalling the issue and leaving the character dynamics at a ... somewhat stable state. How long will Purirun be able to keep her villainous inclinations at bay by simply caring for her as a friend? Anyways, 10/10 Cure.
2. Cure Idol - I like the lead a lot. I'd say that she reminds me the most of Love though I'd say Love has more cool moments while Uta has more heartwarming moments (and is also a bit dumber, not that Love was that smart). I'd say that I like Uta slightly more than Love.
3. Cure Zukyoon - A bit of an odd character since she seems to switch back and forth between "oblivious airheaded idiot" and "caring older sister", she's still a ton of fun. Thank goodness she's back to normal and her and Uta can go back to being intimate. 2 double handclaps this episode? How lewd.
4. Cure Kyunkyun - She's always a ton of fun whenever she contributes more to a scene than just her catchphrase (though I can't hate her catchphrase). I wasn't expecting her Idol and Wink love to manifest into sincere arguing with Meroron. I'm not really sure what the show has in store for her after that emotional Mother's day episode, but I'm still excited for the next Kokoro episode, whenever that comes.
7. Cure Wink - She's just in the background most of the time, but I do find the moments where she does take the spotlight fun, like in this last episode where she was fawning all over Meroron. I love her a lot, but I can't help but rank her last. I'm still excited for her upcoming episode nevertheless.