I am mostly a sweet onion person. Recently I made a jambalaya with two yellow bell peppers and a large sweet onion. The finished dish was delicious, but by the end of a bowl it was overwhelmingly sweet. I used a 14oz can of diced tomatoes and no added sugar so I felt most of the sweetness had come from the onion and the peppers. I have since made this again with a yellow onion and one small red bell pepper. Much better balance of flavors.
I have been using sweet onions almost exlcusively for years. This is the firsat time I've run into a difference like this. What dishes do you make where you purposefully choose a yellow onion over a sweet onion?