u/Maru20071978

This is all entirely subjective and I'm up for debate on them, I just wanted to share my thoughts

S tier
Fukatsuki: As unexpected as it may be to some, I unironically believe Fukatsuki to be the best IWBTU character, with the exception that it requires you to actually know how Fukatsuki works and how their abilities work in IWBTU/LMS. The reason why Nyan ranks so high is because she's able to just outrun you like she's on a perpetual sugar rush, and a good Fukatsuki is able to do that with much less grace periods between cooldowns for the killers. Because of how low the cd for the flute is in IWBTU paired with the length of her effects, she can just cycle between the bike and bunny hood to outpace you constantly. Better hope there's a Jack or Limewire on your team, or maybe a DotX, or you're just straight up cooked if the player's competent at the character and knows how to abuse her abilities. Plus on maps like My World or the minecraft map, she can also use the frog ability to jump out of reach of the killers to make ridiculous distance.

A tier
Dante: Dante's really good because of one thing: Adrenaline. That speed boost you get after stunning in IWBTU. Dante gets invincibility on quick swing, a low cooldown if it hits, and wingbeat is both a great mobility tool and also just almost a guaranteed hit and run with how many killers there usually are.

Nyan: She's fast. VERY fast. With a invincible dodge ability too. Not much else to say.

B tier
Roflpix: Kinda just your budget Nyan. Your only option is RUN, though it is aided by the fact you no longer get slowed when using camera, and with how many targets there are, it isn't hard to get a snapshot and refill your battery. You gotta be very careful though, while you can outpace most killers pretty well like this, one missed snapshot or ragdoll using movement opportunity and you might be cooked.

Tac9: Tac's already pretty solid as a character, and with dropkick, not only do you get the adrenaline boost but you can also fling yourself back for even more distance. Just make sure you don't get stuck in any walls. Also wall jump can be great for making lots of distance on maps like the minecraft map, with dive kick fulfilling a similar purpose if landed, which is a lot easier when you have 5 or 6 killers after you.

Vinnie: Vinnie's also a solid stunner, though he suffers in IWBTU from what I've seen because of one thing: He's built for fighting, not running. His punch has a really long startup that slows you, and if you whiff parry, then you're gonna get bullied HARD. In my time playing, where I've gotten almost 4 killers to lv100, I've only seen a Vinnie survive an IWBTU round once. He has the potential to do good, but you need to be smart with when you use his moves.

C tier
Mikaela: As cool as I think Mikaela is, I don't think she's built for IWBTU. She's a ranged stunner, and paired with the fact that she seemingly doesn't get any buffs beyond the hp, adrenaline and reduced cooldowns that are standard with everyone else, her kit doesn't accommodate a mode like IWBTU at all because there's way too many killers rushing you down. The only way I could see her being better for it in the future is if they made it so she wasn't slowed when aiming akin to Roflpix's camera or when she uses smokebomb. Either that or give her an IWBTU exclusive mild rework that changes out the smoke bomb for a grenade that takes a second before exploding and stunning any killer near it.

Crafter: Crafter is a set-up survivor. IWBTU doesn't wait for you to set up. The only thing he has going for him is that he isn't slowed when mining. Beyond that, he's cooked. You just need to pray to the rng gods you get to iron before they get to you, and with killers like Limewire or DotX, that isn't likely. His minecart can only hit one killer, and his sword requires you to launch yourself at the killers, which is the opposite of what you want to do in IWBTU bc sure, you stunned one of them. There's still a handful of others who you just propelled yourself directly at with no remaining defense. The only way he can hope to win is by using walls to block off tight hallways on maps like the mall, meaning he's terrible on average, and mediocre in specific situations.

D/WHY tier:
Kit: Do I really need to say anything? It's Kit. A blade of grass makes him shatter like glass, and now instead of grass, you have 6 bloodthirsty mallets ready to reduce him to pixels. If you SOMEHOW win IWBTU as Kit, you deserve an honest to god medal, especially on any map other than the minecraft one, my world or minesweeper.

Here's the link https://www.youtube.com/watch?v=RG2vw27o1v0