I'm also opposite from you. I quite like celery but even the smell of brussels sprout makes me ill.

I attribute my dislike of many vegetables (b. sprout, okra, asparagus, broccoli) to how my middle- and high-school cafeterias always overcooked them into a wretched goo. I've developed a taste for some of these later in life when properly cooked but sprouts and okra are still inedible.