The top tier list isn't really mine, per se, not that anyone would deny that most of those listed are indeed broken.

There's also some level of power-creep going on here too, and pre-bloom Alpinia without her special was already kinda power-creeped to begin with. I guess you can make the argument that her special still makes her relevant, though you'd think a dodge passive would suit her better than a counter passive. She'd make great competition for being a tank compared to Ionocidium/Lycoris/Saffron/etc. if not for that.

But anyway, the only underwhelming ones on the list would probably be Cherry and Acacia. And again, it's because they already have the incredibly good -15% enemy attack skill to begin with.

Everyone else is some combination of a massive stat booster, skill booster, or counter/dodge survivalist.

On the other hand, attacking twice, party-wide tankiness/attack negation, and so on probably puts those higher than the rest.