1.  Both can bring tears to your eyes. Sometimes joy and other times sadness.
2.  Both offer a variety to choose from.
3.  You must be very careful when chopping or slicing them.
4.  They are good for your health. They are good for your heart.
5.  They can be spicy, tangy, or pungent.
6.  They can be mild and sweet while other times they can be quite sharp.
7.  Although onions are normally an accompaniment, sex is usually the main course.
8.  They come in different shapes, sizes, and colors.
9.  They appeal to a lot of people.
10. Many prefer to have them fresh. It's just not the same when they become dehydrated.