Alt coin with biggest use-case?

So whats the alt coin with the biggest use-case? A lot of these projects are very intresting, but many times the coin seems to be slapped on, because everyone else has one. Am i missing something?

So whats the alt coin with the biggest use-case? A lot of these projects are very intresting, but many times the coin seems to be slapped on, because everyone else has one. Am i missing something?