Is Ben Nye or Snazaroo easier and smoother to apply?

I'm planning to use either Ben Nye or Snazaroo makeup for a costume at an upcoming convention.

Last time I went in costume with white Ben Nye makeup, but I'm not sure if it was just because it was my first time using it or my technique or something else, but it came out a bit caked looking and blotchy, and was difficult to make look smooth. Like I said before, I'm not sure if it was just a beginners mistake of applying too much, using the wrong technique, using too little/too much water, etc..

But in your experience, was Snazaroo or Ben Nye easier to apply? And if you know good techniques of how to apply, it would be appreciated.