[{quoted}](name=Valaran Nara,realm=NA,application-id=6kFXY1kR,discussion-id=MEhfNvU6,comment-id=00030000,timestamp=2017-01-23T18:53:34.667+0000)
Well, when they're humanoid and human size, you can more easily gauge their thoughts, gestures, and what they're going through. Nautilus was cool for the ultra destructive "BF MONSTER" part, but having all big guys would entail completely different story and theme. At which point all you see are things blowing up, and not much of a story of what's going on.
Also, despite the fact Graves bit the dust, it's satisfying to see a human say "Fuck it" and take down a colossus like Naut.
Xerath, Nasus, Renekton, Azir, Mordekaiser, Hecarim, Karthus, Lissandra. They're humanoid except Hecarim and except Xerath all of them can have mimics.