He is supposed to be a giant living statue that can crush humans with a single finger, but in-game he isn't even taller than Jhin. He have "The Colossus" in his name, make it at least as big as a blue buff or as a 4 stack Cho' :/ https://1.bp.blogspot.com/-8E2gpSvvuxk/WL78nKG8OQI/AAAAAAAAfVU/s1jUqpCCseARTPU9b-GDx6sLAIh-mDyIwCLcB/s1920/wp-galio-base-logo.jpg
Dynikus1 votesmalphite is probably about as big as him in the lore. It's for balance obviously.
Lord Malpercio1 votes[{quoted}](name=Ithil Snek,realm=EUW,application-id=3ErqAdtq,discussion-id=A9ra9Jae,comment-id=,timestamp=2017-03-11T09:26:51.387+0000)
He is supposed to be a giant living statue that can crush humans with a single finger, but in-game he isn't even taller than Jhin. He have "The Colossus" in his name, make it at least as big as a blue buff or as a 4 stack Cho' :/ https://1.bp.blogspot.com/-8E2gpSvvuxk/WL78nKG8OQI/AAAAAAAAfVU/s1jUqpCCseARTPU9b-GDx6sLAIh-mDyIwCLcB/s1920/wp-galio-base-logo.jpg
Only if 
and the Egyptian God Cards 
the Tormentor 
the Sky Dragon and the Winged Dragon of 
get represented at full size.
Ithil Snek1 votesWell, Azir isn't that big, he is barely the same size as Sivir's as shown in the Shurima cinematics and Hecarim is a guy that merged with his horse because of the Black Mist, so their sizes aren't too changed. And Cho's size depends of how much he eats, according to its lore, so we'll say he's kind of fine since he ends up pretty big in late game.
However, the other champs you've mentioned needs to have increased sizes (let's not forget Sion too)
Lord Malpercio1 votes[{quoted}](name=Ithil Snek,realm=EUW,application-id=3ErqAdtq,discussion-id=A9ra9Jae,comment-id=00010000,timestamp=2017-03-11T09:45:55.717+0000)
Well, Azir isn't that big, he is barely the same size as Sivir's as shown in the Shurima cinematics and Hecarim is a guy that merged with his horse because of the Black Mist, so their sizes aren't too changed. And Cho's size depends of how much he eats, according to its lore, so we'll say he's kind of fine since he ends up pretty big in late game.
However, the other champs you've mentioned needs to have increased sizes (let's not forget Sion too)
I was under the impression that Hecarim, lore-wise, is damned enormous. I appear to have been mistaken, though it also seems that he's kind of questionably represented in that regard (Sometimes described as bigger than buildings, other times he's just a centaur.)
Woodakoodashooda1 votesHit boxes and unit collision are made worse by increased model sizes.
