Check out the list on the Waku Waku +NYC Blog. And no, the answer isn’t “Ogiue in that Cardcaptor Sakura cosplay that one time.”
Top 10 rankings are surprisingly difficult for me, because I think I dwell on them longer than you’re supposed to. Still, I understand that they’re accessible and easily digestible content and a great way to introduce anime and manga fans to series they may not have heard of, so you’ll see my try them every so often.
Of course, feel free to leave comments, either here or at the link above.