It seems to be quite fashionable to have a tower of mini cakes or cupcakes rather than a tiered wedding cake at the moment. It's also a lot easier to serve and portion! For me a cake the size of what you would normally have as a 'slice' (that therefore has a higher ratio of icing to sponge) isn't ideal. I know however it would be some girls idea of a dream. My friend Kerry comes into mind, who I've witnessed peeling off the icing first to eat before the sponge! Ah well, they are cute. I wish I had dotted icing inside the flowers... next time eh.
I would personally prefer the cakes like below, not a big fan of icing. For me it's all about the sponge and jaaaaaaam.
Here is a wee pic of the wedding tower of cupcakes I do, also very pretty.