I think I would have to support the Sunflower Clan on this one I admit they are aggressive and do that crazy mind control thing But I love them cause of the little flies with the cutting thread and they are really cute!!
Sorry Drill Clan but they at least try to be nice even if they jump the gun alittle to quickly I'm sure that 20% of japan with Sunflowers are happy to obey their ( referencing what the principle said to megumi in 3rd volume) Sunflower compainions!! I would forgive them if they made me go on a rampage thinking I was going to save everyone from the Drill ( But It doesn't mean I don't like the Borgs or Drill) Clan.
Good, I'm not the only one who thought they were cute xD Those cutting wires were amazing... Like in that scene where Kumi gets sliced and diced by Yuri's Sunflower. Poor Kumi
It's so visceral in the manga, when Megumi gets a few of them clinging to her and bites one open (and then continues to rip it's head off), then impales the others with drills
That was a particularly AWESOME page