that might be really cool.....

The usual bruisers. Irelia (always won the lane, also had way bigger presence in every teamfight), Shen (although he is quite strong in lane, with an adapted build you will outsustain him), Shyvana, Warwick and a Morgana once (quote from Morgana: "Lol, the most useless champion carries these noobs"). While i did lose a couple of those matches (started playing her toplane about 5 days ago), i can´t think of any other bruiser i would have preferred in these situations.

Morello, put her even more behind than you'd put it right now. She's fine as an AD carry, just a small number of QoL changes and that's it. People need to discover her. Don't chainsaw her unless you're totally against that AD carry Kayle.

I could swear, she rocks.

None of those are casters or supports. You're going back over a year to find fighter examples here :P

Please dont change Katarina.

I actually love using Katarina and I am very good with her. Please dont ruin much of her kit

Also I am one of those secret Karma users and I adoooooore her. I carry my teams so well with her. Yes, Karma truly is the secret OP.

v8 Aphromoo played with her and he was surprised how surprisingly well she works. And yes, it's one of the best pro AD carries out there. Problem with AD carry bot lane Kayle is that if her E is on cooldown, then she's extremely easy to harass and that she doesn't work with many supports (the best one is Nunu for her). But yes, she can work and it was already proved by few pro players in high elo games (we have yet to see her in tournament play, but we already saw jungle Kayle from Reflex Gaming in tournament play WHICH WORKED, so why not AD carry now ?).

Do you know if Karma will remain a support or will she be more focused towards mage?

top 50%? steroids and range really. kayles range is 525 with her steroid and melee without. she's forced to itemize for cdr. and her steroids are not the greatest. Her W-E are extremely lackluster and her ult is really what keeps her afloat. Her Q is also really solid. Good ratio/slow/damage amp/overall damage.

Her damage is not even "awesome dmg." Is her damage strong enough to compensate for the 7seconds of down time/35% cdr requirement? I say not because even without the downtime some champions (like Corki) will flat out, outdamage her.

The only thing that prevents any direct comparisons with Kayle and another champion is her ult.

Also Kayle counter picks some bruisers, others she doesn't. She's a situational pick.

And as good as you claim she is, she has not been chosen in any recent tournaments in either EUW or NA. Sure you may like her current incarnation, but are you overly satisfied right now, to believe that she cant be better?

2/2 losses, one of which was a 0 kill game for her team is not working.

Knowing Guinsoo's brand of mad science, probably both