Don't you dare put us in the drawer! We like to live on the counter where the "ooh la la! C'est chic! Susan, that's a lovely berry bowl you've got there"'s come in.
Small: tbh these may be more form than function.
Medium: your bread and butter berry bowl... a "normal" quantity of berry-like items will fit in these bowls, potentially in an attractively "heaping" fashion.
Large: big enough to handle modest amounts of the more compact forms of pasta (but god help you if you try a spaghetti or fettuccini in here). Also good for large quantities of berries and little foods.