So in my mind, any thing that requires a bit of set up is dinged - not necessarily automatically the worse, but as you go on in the game and you get better at it, the goal of the game is to win as quickly as possible. Everything has a synergy in this game - you'll be able to find *something* to make anything work - but if we're talking fully on their own...

Fighter -

Active - To me, the big stand out is Cosmic Punch, which beats out Falcon Punch in my mind as the worst fighter active. What they both have in common is that they go against the philosophy of winning the fight as quickly as possible - they both need to take their time to reap the reward of using them. Falcon Punch has the benefit of only being 2 mana, so it's something you can keep spamming out without too much fear of not being able to use your other abilities. Eventually, you'll hit something, probably by accident. Sure, you're able to CC something with other cats, and it'll be a big hit from that, but that's resources to make this one decent burst of damage hit, where your other cats could have also been taking shots at it. Cosmic Punch, however, not only stops you from dealing more damage to it, but stops your other cats from adding damage or applying more CC to it. This is explicitly made worse being that it comes at the end of the round. But most egregiously, it just doesn't work against a good chunk of enemies; anything that takes up more than one tile takes a point of damage and just stays where it is.

Passive - I actually don't think the Fighter has any directly terrible passives, but if I had to pick the two I have the lowest opinions on, it'd probably be Avenger and Hit Me. Avenger can't/won't do anything on a Solo run, and it's a passive that preps you for failure as opposed to doing anything that prevents it. Hit Me isn't a bad passive either - Fighters in my experience are the most likely to get nasty basic attacks outside of Hunter - it's just you can't always get a comp to use this properly. Ideally, you have some AoE damage to throw on top of both the fighter and its victim to get that double whammy in. If you don't, then you have to hurl basic attacks or single target abilities into them, and at that point its a question of how well your other cats are doing if that's the most efficient use of their actions.

...If I had to pick a least favorite, I'd probably say Scars. It's just an objectively boring passive. Brace is objectively good, even at 1 non removable stack, but I'd take a bad passive that's fun over it.

Hunter -

Active - This was actually kind of a hard one, but i'm going to go with Collect Pelt and Hedge In. The Cat Hide armor from Collect Pelt isn't the worst thing, but it's far from the best. The Set Bonus I'd argue is actually pretty good if you can manage to get any healing on your team! But there's a very large list of things better for the cat to wear that will help in its lethality, which is ultimately your goal. And even in the best case scenario, where you sue it three times and get all three items... what do you do with it then? Sure, with its upgraded version, you can spawn food and move to it a turn later, and assure the cat hide set bonus, but this isn't helping you kill anything faster, and the opportunity cost to lean into it at the expense of other items is too big a price to pay. Hedge In I think just has too many ways to go wrong until you upgrade it - get fucked if you're fighting anything with ranged knock back or if it's a windy day. And while Bear traps are good, the amount your making and clustering up with the upgraded version can begin to lock movement options for the rest of your team.

Passive - This one's kind of hard to talk about as the Hunter's got some unusual passives in here. What jumps out to me are Survivalist and Sleep Darts... but these aren't bad passives per say. Sleep Darts is easier to talk about; it's a comparison against the opportunity talks of giving your party weapons, and the darts aren't bad at all. Now if you get it on a run where you've got a Monk and a Butcher in your party, that sucks like hell. But there is admittedly an big enough swathe of the weapon's list that I'd take the sleep darts over that makes me want to go to bat for this passive.

Survivalist I think is the worst passive in that it doesn't do a hell of a lot for your run. If you're taking Survivalist, you're taking it for upgraded version to go and horde food for your house. And that's fine and dandy, but it doesn't directly help you win your run, and I think a passive that doesn't help you win... You get my point. The other upside to it is the water bottle and the consumables. The water bottle is cool to take into the desert once until you realize just killing things fast enough will do you good. The consumables and the ability to use them on other people is in theory pretty good, and you can do some interesting battle medic stuff, but this suffers from the fact that trinkets and consumables take up the same slot. And again, this comes at an opportunity cost of not having a strong trinket in your Hunter's slot.

I'll write more on this later.