I hear you about hard boiled eggs. They make me gag as well. Yuck. Disgusting things.
Bananas are my kryptonite. I hate everything about them. The smell, the taste, the texture. Everything. The only other food that repulses me as much is hard boiled eggs. I loathe them. The smell, the rubbery, slimy texture. They are so gross. DH used to love egg salad and now and then would ask me to make him some. I hated every second of it. Just looking at a deviled egg makes me gag.