Dislike more or less everything except comfy soft cotton clothes that fit well (not too tight and not too baggy). Must not lack good, practical pockets in the right places.
Hate collars and ties unless they're a perfect fit (too small feels like I'm being strangled, too big and it just feels wrong), and as I'd only want to wear a tie for fun (and rarely at that), in practice I just avoid them as they're of no practical use and I'm against the corporate suit-and-tie ideology, I'd only wear those to show off and I don't show off very often. If I wore a suit it would have to be like Saul Goodman's or an authentic Victorian style. Must have wide lapels and a button hole for a flower, just in case I want to wear one.
Dislike pale shirts, trousers and coats mostly, don't quite know why (I'm slim so it can't be the obesity illusion thing) but I don't like how I look in them and they show all the dirt, though I rather like a light-coloured T-shirt under a dark shirt. Might wear a moderately bright coloured shirt. Hate most written messages on shirts, if I'm going to say anything that way I'd sooner choose my own words, same for pictures. No brand names or company logos unless maybe it was my own company and that's unlikely.
Hate shorts for aesthetic reasons. I'd feel undignified.
Don't much like most shoes, prefer rugged black or brown boots, again must be comfy and easy to get on and off. And thick, comfy cotton socks to keep my feet warm and to cushion my feet. No problem with most sock colours but wouldn't normally go for pink, fluorescent.
Hats - used to like baseball caps when I was a kid (though I've never had one), then began to hate them, still mostly do, but it's under review because the visor bit looks useful for shielding the eyes against the sun's glare. Probably would rarely wear a hat, but like them for protection from skin cancer, so it needs a wide brim like a stylish straw hat or gangster hat. Hate woolly hats for aesthetic reasons, and probably sensory reasons. Never worn one. Prefer just wearing a coat with a hood, but dislike most coat styles.
Coats: Should have a hood usually, one that doesn't blow down in the wind. Like farmers' wax jackets in brown and dark green. Don't mind a Crombie, love the look of a Victorian frock coat but haven't tried one yet. Hate school uniforms and all blazers except striped ones - I used to have one but they said I looked like a hallucinogen user so I stopped wearing it.
Dislike most other coats.
Happy to have a scarf round my neck if it's tied right and tucked into my coat, like a cravat.
A note on trousers: I prefer mostly jeans, but blue denim bores me. Prefer black or dark green. Would consider chequered if not too loud. Zip needs to be well-designed. I won't go into detail about that.
I've disliked pyjamas since I was a teenager but I'm beginning to see the advantage of possible protection from the bedclothes brushing over my skin and making me itch, and the benefit of instant decency in the event of a bathroom trip when guests are staying.
Summary: Most clothes just seem uncomfortable and look stupid to me, but there are exceptions. I'd like to be very good at making my own clothes.