Problem with Cho'gath
While playing Cho'gath, I realized his kit has a major problem. For me, it doesn't feel good to be BIG. Getting bigger just feels like you become a bigger target and your movemoent becomes clunkier.
For other tank champs like Zac, Malphite and Sion, being huge feels great. These champs like to be in the middle of the fight, which is usually where they can impact the fight the most. For Cho, being in the middle feels like you're gonna get rekt. He feels more like a mage than a tank. He doesn't have any in-combat sustain like Zac (aside from eating someone), and he doesn't have armor scaling like Malphite or a shield like Sion. With the new Liandry's and carries getting Lord Domm's, having tons of health often isn't enough to tank through large teamfights.