Well you of course!
No best answer for you mister! But good try ;-)
From 5 months ago? I think the user has forgotten about the question.
I think overall it's I_Am_Canadian because of his cannons, his pistol, etc. and all of his ball machines and innovations.
That depends. On KI (knex innovation) Maybe Mepain or Oodalumps or Bakenbitz or one of those guys. Here on ibles? Not sure really. There are a lot of good builders.