I’ve not tried all of them but I don’t like the ones I have tried

And yes, I have tried roasted sprouts, they were perhaps the worst. The best way I have had sprouts was chiffonaded, steamed, then roasted with bacon and chestnuts, but that would have been so much better without the sprouts. Sprouts are absolutely the worst brassicas (and don’t tell me “there’s a new cultivar that’s less bitter now” cos that’s also horrid and the bitterness was never the problem). Kale is tough and nasty, broccoli tastes bad and bits of it get everywhere, cabbage is acceptable raw if it’s not too strongly flavoured, or its flavour is hidden behind something else and it just provides a crunch.

Mustard (English or Dijon) is good, but not American mustard, that stuff is more bland than mayonnaise! But prepared mustard the condiment tastes absolutely nothing like the leafy green crap I mentioned above

I do like other vegetables, just not brassicas