I like to think of myself as a person who has an open mind to food and generally like, or at least tolerate, most foods. Often a I don't care for is more related to the method it was served or cooked than the food itself (cooked onion > raw/cooked tomato > raw).
The one thing the world seems to enjoy that I just can't get behind: Swiss Cheese.
There is something about the smell and taste of that cheese...I love just about every other type of cheese you commonly find in America. Swiss Cheese is just gross.