This isn't a necessity to Armor Games, but I think it would be a fun feature. In the area where there is the Ranking for the people with the most Armor Points, there could be a ranking of most popular Armatars. It's pretty self-explanatory...the more people that utilize a certain Armatar, the ranking goes up. This way, you can see how many people have the Armatar you have. You can also use this to conform with what most people have, or you can strive to be unique and wear a lower ranking one.
If you don't like my idea, it's fine I won't get upset...
That's where coding it may get time consuming and difficult. In order to prevent people from spoiling the surprise, maybe when you've reach the set amount of AP, you can then see the Armatars (i.e. a Serf wouldn't be able to see the 875 AP Armatars until they've reached those points).
I agree with shark7996 - it would ruin the whole idea of needing ap for armatars as you would already be able to see them. also ranking?. If anything more of a list of all of them showing the number of people using it, but only showing the ones you have unlocked.
Well, the 10000 and 7500 AP armatars will be the least used, of course. But this would be cool. It should only show the armatars you have unlocked, though. Might be hard to code, I don't really know though.