Well I despise Germa 66, including Reiju.
Are Vergo and Monet popular? Boring, boring characters. Tashigi also bores the hell out of me.
I'm indifferent to most of the RA. Ivankov and Kuma are the only ones I really like. Even Dragon, who I used to think was awesome, I'm just increasingly exasperated by as Oda has him sit back and do nothing while Sabo is the main figure.
I don't dislike Kizaru per se, but I find him sort of irrelevant? Compared to the other main Marines anyway, he's just sort of there. Does some cool shit, but as a character isn't anywhere near as interesting as the other Admirals (Ryokugyu pending).
Kid's been a disappointment. Hoping for a lot more from him in the end of Wano.