Personally, I think the strongest attacker in Tokyo Squad (the main character's team)

is Muscle Man.

The most explosive is Kurono Kei.

The one with the strongest backstabbing ability is Saizo.

The strongest agility ability is Glacier (male vampire).

The one with the most potential would be Takeshi (if given a few more years to grow 。。。。 But it's almost the end of the world, so there shouldn't be much of a chance -_-)

Summarizing the Tokyo team, the one who should be the strongest is Kurono Kei (after all, he's the protagonist and has tried to take out the boss twice without a protective suit)

It seems like there's no female first in Killing City.

LZ asked that I believe I've only read a little bit of it now.

Kishimoto never liked the main character, she liked Kato and then hung up.

Laura liked the main character but then died.

Kojima is Kurono Kei's current girlfriend, but is just an ordinary person with no fighting ability.

Rika likes the main character, but the main character rejects her because of Kojima. Later, Rika made an extra copy of Kurono Kei out of her. Now Rika is with the duplicate Kurono Kei.