id have a very hard time eating this:
http://www.youtube.com/watch?v=hvyunwtlvuc
But the dishes Ive come across that I hate a lot are:
Liver
Blue Cheese
Unagi sushi (might have been bad sushi)
and except those three I cant think of any dish right of the bat that I don't like.
I absolutely love brussel sprouts, broccoli, spinach and all those classic "hate" ingredients.
e: and even though I'm Swedish ive never had Surströmming which is almost a legend in how bad its supposed to smell.
http://en.wikipedia.org/wiki/Fermented_Baltic_herring