i think u shud put in two alternatives for the tanky build, like a build for an AD enemy team and AP enemy team.

It's pretty good, but I would start out with a Doran's Ring for your AP build. I have found it to be much more effective than going with a Doran's Shield in the past. Also, don't level Feral Scream in an AP build. You always want to max Rupture. First of all, It's modified by 100% of your Ability Power. Second, the slow that it brings can really assist with your teams kills. It is the best skill on AP Cho'gath and it should be maxed first. What would be even cooler is if you put some pictures of the items that you're talking about for more dramatic effect. +1, but it needs revised a bit.