User blog comment:Conqerer2/NoobPlay/@comment-3450702-20120226134424

The real question you have to ask yourself before choosing a playstyle is "What is my role on the team, what is my job, what can I do better than anyone else that will help me win?" When playing Cho'Gath, you can go tank or AP, or a mix between the two. I personally prefer tanky Cho'Gath with Wit's End, Randuin's/Frozen Heart, Banshee's/FoN and Shurelia's; however, going full AP Cho at lower summoner levels can also work as the enemies might not focus you just because of your health pool (due to feast stacks).

If you're playing the Tank role, you should always be in the front, catching skillshots for your teammates and rupturing the enemies whenever you can. If you hit a carry you can start a fight, feast on him and use your silence to hit as many targets humanly possible, but focus on hitting their caster mainly. You then stick around and attack the highest damage threats, while the rest of your team does most of the damage.

When playing AP, you need another tank with you. Rely on the tank for initiation, and when their carry (any high DPS champ) is close enough, use your kit to kill him. Stick in the back and just use your abilities' high damage, you can survive some damage but not a lot.

Hope this helped :)