I hate the solar blast girls cause I autorun everything. If you actually remember to check in on them they can be a pretty useful squad, but if you're busy and autorun a lot you're best off with literally any other skill.

I also dislike girls with +speed passives because they mess up my squad compositions really hard - my primary clear squad setting all have roughly equal speed so they don't overrun each other, which is best for most maps, but girls which increase speed boost power down my squads as I have to put in girls which are super slow to counter them - usually these girls are subpar 3* and 4* ones. Dipladenia and Oncidium are the most blatant offenders here.