What countdown to do next??? Advice appreciated ^^

I've been making AMVs for a couple of years now to enter into contests, but I recently started making anime countdowns in AMVs. The latest/2nd one I've made was just uploaded in the video section *points up*

But I dunno what list I wanna make next!

Here are some I'm thinking about, please come with some suggestions! ^^

Top 10 female characters in anime
Top 5 antiheroes in anime
Top 10 anime couples

Like said, please leave suggestions or tell me if any of these sound good!

My username on YT is SaveMeMoon if you wanna check out my previous "Top 10 coolest anime guys" video.

Thanks a bunch~!