People say this will help AG, but no one is giving a reason why. Although its an alright idea, it isn't going to change much cause chances are the top 20 are games you have already played and beaten, and it will just become an unused page. Games do not beat the top 20 very often and if ever and the lack of actual change in the list almost makes it obsolete. And if a new top 20 game were to come out, it would do so on the front page. And you would see the high rating anyways, so I personally don't think this will be useful at all and will end up being scarcely touched.
All you have to do is go to the all category, right.Then change the order to rating and it shows the highest rated games to the lowest rated games so I see absolutely no need for this idea.
The most popular games are to "whose" opinion that they are the best? Do they have the most plays? The best ratings? What?
I think we shouldn't worry about the popular games section as you can browse all the games yourself and just put your opinion of "opular" games into your favourite list.