Yeah IMO the best kog'maw builds either exploit his % damage like that or the range on his R with pure AP/mana, or some mix of those. AD just gives him better squish killing when they slip up and you don't need to chisel at the tank. But, I'm certainly no uber pro kog'maw.
So Leaguecraft did a total site redesign; not only are my builds currently unavailable, but if and when I do get them back I still won't be able to design new builds. I used leaguecraft because it had good gold cost readouts and a convenient interface to toss together builds very fast; and in league of legends, your build should not be the best 6 items so much as the best 6 items and 14000 gold or what have you depending on style and champion. The new design still has a total gold readout, but you need to scroll up and down and up and down as you build because now instead of champ on the left items on the right it's champ top items bottom. Additionally the items themselves don't list a gold price until you click on them, and you can't sort items by gold value. This means that I can no longer finish my build with "ok, 2k gold and I need MR" in a timely manner.
Hopefully they'll get this sorted out, as the other sites I've tried never give enough attention to the gold component and frankly make it as difficult as possible to work out a build - they're designed for writing guides, so they assume you already know your build like the back of your hand before you open the champion builder. This isn't what I use it for and so I'm terrified at the prospect that it might never be fixed, because I can't very well code my own solution unless I'm prepared to build and maintain a database of all champions and their stats and abilities and all items.
