Ooh i can def answer this in generalities!
Mori is the type to just hulk out and hunt you down. His sense of smell is very good and his natural impulsivity and recklessness makes him unlikely to plan anything too meticulously. He's gotten his hands dirty before and while its not his favorite thing in the world, he's very prepared to do it again.
Amir is. Cautious. He doesn't want to be. His natural impulse is to rush to your aid but he learned in the worst way that gambling like that comes with STEEP consequences. An MC who doesn't know his backstory well might actually feel shocked and hurt at his apparent coldness in ensuring he was making the smartest call. He's possibly the most likely to oblige a ransom, in his head ensuring your safety is utmost and he can work on regaining lost ground later.
Akello surprisingly is gonna pull a Mori. He's a lot smarter about finding out where you were being held, for instance, and would make sure that he knew what he was stepping into, but Akello's demonic powers are WAY past the average and he's zero percent afraid to rip that building off the foundation to get to you.
Kazu might not be a demon but he's strong. Like. Crazy strong and he's been doing violent work most of his life. He is zero percent afraid or worried about bodily damage and to be honest... if a human was going to have the raw power, skill, and technique to punch some enforcers (or worse) into ground beef, its Kazu. Expect him to kick down the door shortly after MC is kidnapped.
Raath is a sniper/assassin by trade and has dealt with this situation for clients in the past. He might invest time in securing his vantage point but it will be time well spent as he is an excellent marksman and his long distance kills are immaculate. Expect the death to rain down a little bit more messy as this being more personal to him will carry a little bit more of a Sadist's flair. Expect to be lectured afterwards.
Marcel isn't superhuman and doesn't have Kazu's decades of training so he is at something of a disadvantage. However, he's smart, and charismatic, and of all the characters, I think behind Amir, Marcel has the strongest chance of actually negotiating a peaceful end to the stand off. He doesn't let go of a grudge easily tho so you can expect him to want payback afterwards.