When it comes to durability in cupcake toppers, I would say that metal toppers take the win without a doubt. In fact, a lot of people simply go with metal toppers not just because they can be beautiful but because they are incredibly durable.
If you are holding an event that you would like to have a long-lasting keepsake, it really makes a lot of sense to simply go with a metal topper.
Of course, wood is another solid alternative. Wooden Toppers are also quite durable, and those who would like a rustic feel to their cupcake toppers may go with wood and still enjoy a great deal of their durability (maybe not as much as metal, but enough to qualify in its own right).
In summary, if you're looking for durable Cupcake Toppers, go with metal. If you're looking for something that is traditional and rustic but still beautiful and durable, then go with wooden toppers.