The Floating Cake Stand employs the use of a central stabilizer located at the back of the stand giving the impression that the cake layers are "floating" on their bases. Grouped Arrangement Cake Stands are very versatile in that they are designed for you to display more than one cake at a time in a variety of ways. Grouped arrangements can be displayed asymmetrically (no particular display pattern) if you want to be different from the norm. However, the standard three group arrangements are cascading, rounded, or stair_stepped.
These different cake stands can actually be used for any type of event when decorated accordingly, but you need to take three things into consideration: 1) the kind of event you're planning, 2) the kind of cake you're having for the event, and; 3) the 'look' you wish to achieve with your display. Once you figure these out, you will then get a clearer picture of what cake stand you need, and what you can do with it to achieve the look you are aiming for.